Gate the MiniMax H3 demo behind an experiment flag, with an integration check that switches it off - #1214
Gate the MiniMax H3 demo behind an experiment flag, with an integration check that switches it off#1214christian-byrne wants to merge 14 commits into
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Included review availability: 8 reviews are currently available. Your included PR review attempts over the past 7 days set your current allowance at 10 reviews per hour. 📝 WalkthroughWalkthroughThe change adds build-time experiment flags for the MiniMax H3 demo, gated page rendering, CTA analytics, deployment integration tests, automated kill-switch pull requests, Slack notifications, and a shipping policy. ChangesExperiment rollout
Suggested reviewers: Merge Risk: ⚪ Minimal · up to The PR gates the MiniMax H3 demo behind a build-time flag and adds integration and health-check automation; with the feature shipping disabled, no actionable merge-blocking risk remains beyond normal checks and review. 🚥 Pre-merge checks | ✅ 2✅ Passed checks (2 passed)
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@coderabbitai review Triggering a manual review — this is a draft, so it was skipped by default. Worth a look in particular:
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In @.github/workflows/minimax-demo-integration.yml:
- Line 168: Update the workflow step containing git push origin HEAD:main to
handle a non-fast-forward rejection by fetching the latest main, reapplying the
demo-disable flag mutation, and retrying the push while preserving existing
behavior for successful pushes.
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In @.github/workflows/minimax-demo-integration.yml:
- Line 197: Update the minimaxH3Demo experiment-flag command to assign
GITHUB_OUTPUT an explicit empty value using the workflow’s shell syntax,
preserving the command behavior while resolving ShellCheck SC1007.
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TL;DR: lens pass found this review-ready on code evidence, with no new blocking code finding from the current diff surface. Full context for agent readersChecked current PR state at head Readiness gap: the PR body says the live 404 still depends on the router/deploy path, and the current checks show |
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Thanks for the approval @christian-byrne. It came through with an empty body and no inline comments, so there was no code feedback to action — but in going back over this I found something that I think outranks the diff: this PR is now obsolete, and merging it would be a small regression. Flagging rather than pushing a change. The premise is goneThis PR exists for one reason: "Run" on the MiniMax H3 demo 404s, so unlink the promo until it's fixed. Both root causes were fixed on
Both landed before the approval timestamp, so I suspect they just weren't on the radar. Verified against production, not inferredI loaded The UI went straight to "Generating… 1s" with a live progress bar and a working Cancel — no 404, no 403. I cancelled it so nothing is holding a GPU. The old path still 404s ( The promo itself is also live and healthy on the hub right now — the nightly cron picked up #1208, so the video and poster serve from What merging would actually doThe promo is the demo page's only entry point (it's RecommendationClose this without merging, and move FE-1932 out of Triage — the reported symptom is fixed in production. If the concern is "what if it breaks again", the durable answer is your #1214 (flag + integration check that switches the demo off automatically) rather than a hard-coded removal like this one. Worth noting #1214 is currently conflicted ( One unrelated loose end I noticed while testing: the queue endpoint returns Happy to close this out myself, or to rebase #1214 instead — say the word. Screenshots |
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Two blockers.
Context first, because it causes the first one: #1213 and #1215 both merged while this was open, so the 404 and the 403 this PR diagnoses are already fixed in production. I checked today: POST /workflows/api/minimax-h3-multiref/run returns 400 with Origin: comfy.org and 403 with Origin: evil.com.
1. The integration check points at a path that no longer exists
#1213 moved the routes to /workflows/api/.... The test still builds its base as /api/workflows/..., which is a hard 404 on both origins, with no redirect and no rewrite in either vercel.json. The merged tree contains only site/src/pages/workflows/api/minimax-h3-multiref/*, so after the rebase this check can never pass anywhere.
Two knock-ons worth knowing:
- The test file is not in the conflict set, so the rebase will not surface this for you.
- The failure prints the FE-1932 router diagnosis, so the recorded reason will be wrong.
The app itself is fine. The merge takes main's MiniMaxH3Demo.vue, which already calls the new paths. It is only the test.
2. The kill switch cannot push to main
git push origin HEAD:main is rejected by ruleset 9388637 on main: pull_request rule, required_approving_review_count: 1, bypass_actors empty, current_user_can_bypass: never. That is the rule rather than a race, so the git reset --hard origin/main retry loop below cannot recover it. 25 of the last 25 commits on main went through a PR.
Every other automation in this repo already works around it. i18n-update-hub.yml pushes a branch and opens a PR; sync-template-index.yml and generate-upload-json.yml push to a PR head. None pushes to main.
So as written the flip never lands and "switches itself off" degrades to a Slack message asking a human to do it. It fails loudly rather than silently, so it is not dangerous, but it never does its main job. Fix is to open a PR like the siblings, or add a bypass actor to the ruleset.
| import { exampleKeyframeUrl } from '../../src/lib/demos/mmh3/config'; | ||
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| const BASE_URL = (process.env.DEMO_BASE_URL ?? 'https://comfy.org').replace(/\/+$/, ''); | ||
| const API = `${BASE_URL}/api/workflows/minimax-h3-multiref`; |
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Dead after the rebase. #1213 moved these routes to /workflows/api/minimax-h3-multiref. This base 404s on comfy.org and on workflow-templates.vercel.app, and nothing maps the old path (no redirects or rewrites key in either vercel.json).
This file is not in the conflict set, so the rebase will not flag it. The 404 branch of diagnose() also needs revisiting once the base moves, since it hardcodes the FE-1932 router explanation.
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Confirmed and fixed. Rebased onto main and retargeted the base to /workflows/api/minimax-h3-multiref.
Your 404 reproduces exactly:
| URL | comfy.org | vercel.app |
|---|---|---|
/api/workflows/minimax-h3-multiref/queue |
404 | 404 |
/workflows/api/minimax-h3-multiref/queue |
301 → /queue/ |
200 |
You were also right that it reaches past the base. Three further things were stale:
diagnose()404 no longer blames a missing router rule for/api/workflows/*— that prefix existing under/workflows/is the whole point of Fix 404 when running the MiniMax-H3 demo on comfy.org #1213, so a 404 now means the routes moved back out of it or/workflows/*stopped forwarding.diagnose()403 pointed atsecurity.allowedDomains. Fix 403 CSRF rejection on the MiniMax-H3 demo through comfy.org #1215 replaced that approach entirely, so it now namescrossSiteRejection()inmmh3/server.ts.astro.config.mjs— this branch carried its ownallowedDomainsblock, which the rebase conflicted against Fix 403 CSRF rejection on the MiniMax-H3 demo through comfy.org #1215'scheckOrigin: false. I dropped mine; that file is now byte-identical to main.
One thing the retarget surfaced that I'd have shipped as a false red. comfy.org redirects the slashless form (301 GET, 308 POST/DELETE), and Node's fetch does not re-send the multipart Content-Type boundary across it:
POST .../run → 400 redirected=true {"error":"Expected multipart/form-data: Failed to parse body as FormData."}
POST .../run/ → 400 redirected=false {"error":"Reference 2 is missing from the upload."} ← handler ran
Browsers replay the body across a 308, so the page is fine — but the check would have gone red on a healthy demo and switched it off. Endpoints are now requested with the trailing slash, and a guard asserts the submit was not redirected. Since that means the suite drives the second hop, there are now probes pinning the first: the slashless GET must resolve or redirect to the slashed form, and the slashless POST must answer a method-preserving 308 (a 301 would downgrade every visitor's submit to a bodyless GET).
Verified end-to-end against production — 9/9 green, including submit, poll and cancel.
Separately, and not something this PR changes: /queue reports {"available":false,"reason":"COMFY_DEPLOY_API_URL is not set"} on both origins, so the deploy control plane's URL is unset in production. Submissions work regardless, but it means the queue readout carries no worker census. That matters here because it was tempting to use the census to distinguish "job queued behind a cold start" from "job queued behind nothing" — it can't, so the check requires the job to actually leave queued within a 240s window instead.
| # human, and losing this race would leave it live until someone acted | ||
| # on the Slack ping. | ||
| for attempt in 1 2 3; do | ||
| if git push origin HEAD:main; then |
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This push is rejected by ruleset 9388637 on main (pull_request, 1 approval, bypass_actors empty). It is the rule, not a race, so the retry loop below cannot recover it.
i18n-update-hub.yml, sync-template-index.yml and generate-upload-json.yml all push a branch and open a PR instead. Same shape would work here.
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You're right, and the retry loop was worse than useless — it made a rule look like a race. Confirmed against the API:
GET /repos/Comfy-Org/workflow_templates/rules/branches/main
→ pull_request { required_approving_review_count: 1 }, deletion, non_fast_forward
ruleset_id 9388637 · "Main branch protection" · enforcement: active · bypass_actors: null
Adopted the i18n-update-hub.yml shape: commit to a stable ci/minimax-demo-kill-switch branch, push, then reuse the open PR or create one. The retry-and-reset loop is gone.
Three follow-on things I had to fix to make that honest:
-
Re-alert storm. With a PR pending,
mainstill says the flag is on, so the oldchanged == 'true'condition would have re-pinged Slack every 6 hours until someone merged. Slack now keys on having opened the PR; a run that finds one already open exits without pushing, so there's no branch churn either. -
The
--force-with-leasewas fake. I originally wrotegit fetch origin "$BRANCH"then a bare--force-with-lease— but the fetch refreshesrefs/remotes/origin/$BRANCH, which is the very ref the lease checks, so it always matches. Proved it in a scratch repo:stale explicit lease → REJECTED (lease works) bare lease after fetch → ACCEPTED (degraded to --force)Now captures the sha via
git ls-remotefirst and passes it explicitly; an empty value means "must not already exist", which is the right expectation for the create. -
The docs were claiming something untrue. Both the workflow header and Rule 4 of the policy doc said a health check switches a surface off unattended. It can't — and not only because of the ruleset: the flag is read at build time, so even a merged flip only reaches users on the next site build. Both now say the automation prepares the flip and a human merges and deploys.
One correction to the framing, though — the gate can't key on the flag in the repo at all. main and production legitimately disagree between a merge and the deploy that ships it, which made the kill switch wrong in both directions: it would revert a flag someone had just turned on but not yet shipped, and stay silent when main said off while production still served a broken runner. The page spec now emits DEMO_RUNNER_LIVE, and the flip is gated on what a visitor is actually being shown. That's also self-limiting — once the fallback ships, it stops firing.
Verified: actionlint + shellcheck clean, and the Summarize extraction exercised on synthetic logs for the runner-live, fallback and page-unreachable cases (the last leaves the switch disarmed but now still alerts — a flag can't fix a missing page, but silence was the wrong answer).
Known gap, not fixed here: if a kill-switch PR is already open and a different outage starts, the run stays quiet and the recorded reason keeps the older diagnosis. The PR sitting in the queue is still actionable and each run's step summary carries the fresh diagnosis, so I've left it rather than add unreviewed logic to this file — happy to do it here if you'd prefer.
…n integration health check The demo's Run Workflow has returned 404 on comfy.org since it shipped (FE-1932). comfy-router#39 added the missing /api/workflows/ rule and is merged, but its deploy job is workflow_dispatch-only and has not been run, so production still routes those calls to the marketing origin. Nothing tested the path end to end, so a five-day outage was found by a person clicking the button. This adds the missing check and a way to fail safe. Integration test (site/tests/integration) drives the real user path against a real deployment: queue readout, three-reference submit, poll, cancel. It sends a browser-shaped request — real Origin header, real CDN image bytes, multipart/form-data — because each of those is what one of the known regressions turned on. Kept out of `pnpm test`, which stays hermetic. Experiment flag (site/src/data/experiment-flags.json) is repo-owned and read at build time, so the disabled branch is absent from the emitted HTML rather than hidden by client JS: crawlers and users get the same bytes. Off means the page serves a static fallback shaped like a normal template page, with CTAs that go somewhere that works, and the hub index drops the promo entirely. The demo page is also no longer `prerender = false`; nothing in its frontmatter needs a request, so it is now statically generated. CI (minimax-demo-integration.yml) runs the test on a schedule and after each site deploy. On failure it switches the flag off, commits, and posts to Slack using the chat.postMessage pattern from ComfyUI_frontend. It never fails the job: the demo's backend is private beta behind a pre-alpha router, and a red check there must not hold up unrelated template releases. Recovery is not automatic — a green run only reports that the demo could be switched back on. security.allowedDomains names comfy.org so Astro trusts the X-Forwarded-Host the router already sends. Without it the CSRF guard compares the browser's `Origin: https://comfy.org` against the proxied host and rejects the demo's multipart POST with 403 — the next failure waiting behind the 404. Also adds docs/shipping-experiments-policy.md, the cross-team rules for putting unpolished surfaces in front of traffic without damaging GTM metrics. Refs FE-1932
Review found the allowlist did not do what it claimed, and that the alerting around the kill switch was inverted. security.allowedDomains carried `protocol: 'https'`. Astro validates a forwarded protocol by matching `<proto>://example.com` against the patterns in full, so a pattern with a hostname can never match: X-Forwarded-Proto was dropped and the origin fell back to the socket scheme — `http` on Vercel, where TLS terminates at the edge. That yields `http://comfy.org`, which still fails the Origin comparison, so the 403 the block existed to prevent would have survived. Hostname-only patterns return {protocol, host} and match. Verified against Astro's own validator, including that `comfy.org.evil.com` is still rejected. The workflow announced recovery whenever the test passed while the flag was off, which is the shipped steady state — that is 4 posts a day, forever. It is now edge-triggered: scheduled runs report recovery only in the step summary. The kill switch could also fail silently. `Switch the demo off` had no continue-on-error, so a failure there reddened the job and skipped the Slack step — no message at exactly the moment the demo is broken AND stuck on. It now continues, and Slack has an arm that says so. A workflow_dispatch against a preview origin could flip the production flag; the disable step now requires the tested origin to be production. Integration test: record the job id before asserting on status, so an unexpected status cannot leak a live GPU job past the cancel hook. Narrow HEALTHY_STATUSES to the three JobStatus values that mean "accepted and progressing" — it previously listed four statuses the server never emits while omitting real ones. diagnose() no longer explains a page 404 in terms of the API router rule. Fallback CTA said "Run it in Comfy Cloud" but getCloudLandingUrl carries no workflow identifier, so it lands on the Cloud home page; relabelled to match, and both CTAs no longer overflow their buttons. Added the data-* attributes the policy's own Rule 3 requires to the promo and fallback CTAs — the live promo has neither UTM nor data attributes, so clicks into the demo are currently invisible in the funnel. Refs FE-1932
… honest
Second review round. Three of these were self-certifying: code and a new policy
document asserted guarantees the code did not provide.
Analytics. PostHog runs with autocapture off and tracks only by delegation on
specific hooks in PostHogAnalytics.astro, so the `data-experiment` attributes
added in the previous commit were read by nothing — while a comment beside them
claimed "existing click tracking picks the promo up", and the policy document
added in the same branch used this page as its worked example for Rule 3. It
failed its own rule. There is now a real delegate: internal experiment entry
points fire `hub:experiment_cta_clicked` via `data-experiment`, and the
fallback's outbound Cloud CTA carries `run-cloud-btn` so it reports as a signup
CTA. Both are locked by unit tests, and Rule 3 now states how tracking actually
works rather than assuming attributes are enough.
Failure reason. The extraction matched only `AssertionError:`, so a down origin
— which fails as `TypeError: fetch failed` before any assertion runs, and is
the most likely outage given the backend is private beta — fell through to a
downstream cascade guard and recorded "no job was submitted, so there is
nothing to poll". That string is posted to Slack and committed into
experiment-flags.json as the flag's permanent reason, so it would have written
a confident wrong diagnosis into git history. The pattern now matches thrown
errors too, and the poll/cancel specs skip instead of manufacturing decoy
assertions. Verified against both an unreachable origin and the live 404.
Kill switch. envOverride was consulted in production builds, so a stray
variable in Vercel settings would outrank the committed JSON: CI would switch
the demo off, commit, and announce it, while the next build kept serving it. It
is now ignored when VERCEL_ENV=production, and warns in the deploy log
otherwise.
A hand-run dispatch that failed was silent and green — the operator's main path
in the shipped flag-off state. It now always reports.
Also: route steps.flag.outputs.enabled through env: rather than interpolating
it into the Slack shell script, the one place the file broke its own rule;
correct the allowedDomains comment, which claimed Astro drops X-Forwarded-Proto
when it is in fact honoured with an empty allowlist; drop "Live workflow" and
"run the workflow" from the disabled page, which promised a runner three
sections above copy saying it is off; and single-source the example media URLs
in mmh3/config.ts so the health check cannot pass against URLs the site no
longer uses.
The explanatory notes in MiniMaxPromo are now {/* */} rather than <!-- -->:
Astro emits HTML comments verbatim, so internal analytics notes were being
served to every visitor. A test asserts the component ships none.
Refs FE-1932
…tching
Third review round. All remaining items were MINOR or NITPICK; the verdict was
PASS. Two are worth the change anyway because both were self-certifying.
The override guard tested VERCEL_ENV === 'production'. This project deploys
--prebuilt from a GitHub runner with Vercel's Git integration disabled
(site/vercel.json), so VERCEL_ENV is never set while the site is being built:
the guard was unreachable and its unit test asserted a property nothing
enforced — the exact failure the previous commit set out to remove. It now
reads EXPERIMENT_OVERRIDES, which deploy-site.yml and cron-rebuild-site.yml set
to `deny` on the production build step, and the test exercises that.
The failure-reason pattern matched a fixed list of error names, so a hung
origin — the Cloudflare-524 shape, plausible for a pre-alpha worker — throws
TimeoutError from the test's AbortSignal and fell through to the generic
fallback. It now matches any *Error and DOMException; checked against all four
shapes, and against a log line that merely contains the word Error.
Also: the hub index's gating comment was <!-- -->, which Astro serves to every
visitor; converted to {/* */} like the rest. The flag script now removes its
temp file in a finally, so a crash between write and rename cannot leave an
untracked sibling of a tracked file. The [data-experiment] delegate moved below
the download and share hooks — it is the only ancestor-matching attribute
selector in the chain and would otherwise swallow a more specific event from a
control an experiment wrapped.
The policy document now records that this promo knowingly violates its own
Rule 1 and must satisfy it before the flag goes back on, rather than shipping a
rule its worked example fails.
Refs FE-1932
CodeRabbit caught a real race. The integration test takes minutes — a submit
round trip is ~7s and the poll window is 45s — so main can advance while it
runs, and the push to main is then rejected non-fast-forward. The step is
continue-on-error, so the rejection was tolerated and the broken demo stayed
enabled until a human acted on the Slack ping. That defeats the point of a kill
switch: it exists so a broken demo goes off *without* waiting for a human.
On rejection the step now fetches main, resets to it, reapplies the flag
mutation and retries, up to three times. If the refreshed main already has the
demo off — a concurrent flip, or an earlier attempt that actually landed — it
exits cleanly rather than committing a duplicate.
Verified against a local remote with a genuine stale checkout:
- main advanced by an unrelated commit -> landed on attempt 2, the other
commit preserved, enabled:false applied on top
- main already had the demo off -> "nothing to push", no duplicate
`git reset --hard` is safe in this one place: an ephemeral runner whose only
local change is the commit just made, reapplied deterministically right after.
Exhausting all three attempts still exits non-zero, so the existing Slack arm
continues to report that the demo is stuck on.
Refs FE-1932
…assignment ShellCheck SC1007 flags a bare `VAR= cmd`, since a trailing space after `=` is more often a typo than a deliberate prefix assignment. Behaviour is unchanged — the flag script guards on `if (process.env.GITHUB_OUTPUT)` and an empty string is falsy either way, verified both forms — but the explicit '' says which one was meant. All six run blocks in this workflow are now shellcheck-clean. Refs FE-1932
…ip the flag Two review findings, both confirmed against the live repo and origins. The integration check still built its base as /api/workflows/*. #1213 moved those routes to /workflows/api/*, so the base 404s on comfy.org and on the Vercel origin with nothing mapping the old path — the check could never pass. Retargeted, and the diagnoses it prints go with it: the 404 branch no longer blames a missing router rule for /api/workflows/* (that prefix is the point of #1213), and the 403 branch names crossSiteRejection() in mmh3/server.ts rather than security.allowedDomains, which #1215 replaced with checkOrigin: false. Endpoints are now requested with a trailing slash. comfy.org redirects the slashless form (301 GET, 308 POST/DELETE) and Node's fetch does not re-send the multipart Content-Type boundary across it, so the submit arrived unparseable and the origin answered 400 — a false red on a healthy demo, from a check whose job is switching the demo off. A guard asserts the submit was not redirected. The kill switch pushed to main, which ruleset 9388637 rejects: pull_request rule, one approval, no bypass actors. It is the rule rather than a race, so the retry loop could not recover it. It now commits to ci/minimax-demo-kill-switch and opens a PR, matching i18n-update-hub.yml. Slack keys on having opened the PR rather than on the flag still being on, because the flag stays on until someone merges and the old condition would re-alert every 6 hours. Rebased onto main, dropping this branch's security.allowedDomains in favour of #1215's checkOrigin: false plus the route-level allowlist; astro.config.mjs is now identical to main. Rule 4 of the experiments policy no longer claims a health check can take a surface down unattended — main needs a PR, and the flag is read at build time, so a deploy was always required. Verified: full integration suite green against production comfy.org (submit, poll and cancel included), lint, 892 unit tests, astro check 0 errors, actionlint + shellcheck clean, and a flag-off build leaks no promo markup.
…n demo green Review of the previous commit found the check could pass while the demo was unusable. Each of these is a channel it was blind to. A job that is accepted and then never runs satisfied every assertion: `queued` is in HEALTHY_STATUSES, so the poll loop ran out its window and passed. That is what a deployment with no live worker looks like — the likeliest way this demo breaks. The poll now requires the job to leave `queued` or its queue position to move, so a real backlog still passes but a stall does not, and the window grew to 120s so a cold start cannot go red. Cancel asserted only a 200, which is the control plane accepting the request rather than the job stopping, and then cleared the job id unconditionally — disarming the afterAll hook on exactly the runs where a GPU job was still alive. It now requires `canceling` or `canceled` before releasing it. The job id is also claimed before the submit assertions rather than after, so a throw cannot strand a running job. The CDN spec read the reference bytes from Node, where CORS is not enforced, so assets a browser would refuse still passed. It now sends an Origin and asserts access-control-allow-origin, and covers the agent prompt the page also reads cross-origin. Driving the slashed URL form left the slashless one — the form the page actually requests — untested, so /queue/ answering while /queue 404s would have read as healthy: FE-1932 again, one redirect over. A probe now pins that hop. Also: the page spec could not tell a working demo from its static fallback, so it now checks the island against the committed flag, which catches both a runner that failed to build and a gate that leaked one. The kill switch's --force-with-lease was preceded by a fetch of the same branch, which refreshes the very ref the lease checks and silently degrades it to --force; it now names the sha explicitly. Missing Slack credentials are now an error rather than a warning when there was an outage to announce. Idempotent specs retry twice so a single CDN blip cannot prepare a kill switch. Header, policy recipe and Rule 3 checklist corrected where they contradicted the code. Verified against production comfy.org: 7/7 green with the flag state matching what is deployed, and the new page assertion correctly red when it does not. Redirect probe exercised on both origins. lint, 892 unit tests, astro check, actionlint and shellcheck all clean.
…working Second review round. Two of these would have switched a healthy demo off, and one of them was introduced by the previous commit. The poll window was still 45s while the config comment and the commit message both claimed 120s, and the "did it move" test was `positions.size > 1` over a queue position that is a constant for a single job and `null` whenever the route's secondary read throws. So a cold video worker — the normal state for a 6-hourly check — could not satisfy it, and CI would open a kill-switch PR against a demo whose only fault was starting slowly. The window is now really 120s, and a job still queued at the end is judged on the deployment's worker census: red only when nothing exists that could run it, inconclusive-and-green when the readout will not say. Guessing red is the expensive direction when the verdict flips a user-visible switch. DEMO_EXPECTED_ENABLED compared production against the flag committed on main. Those legitimately disagree from the moment a flag change merges until the deploy that ships it, up to a day later. On a flag someone had just turned ON that read as a fault, and the workflow's own gate (flag on main is true, target is comfy.org) would then open a PR turning it straight back off — automatically reverting a human decision. The check now reads what production serves and reports it, which is also the only thing a visitor can experience. Added the coverage the reviewers found missing. The island assertion only proved Astro emitted the markup; the component and renderer bundles are now fetched and required to be JavaScript, which is the same one-router-rule-missing shape as FE-1932 and was invisible to every other check here. A manual-redirect POST pins the submit route to a method-preserving 308, because a regression to 301 would downgrade every visitor's submit to a bodyless GET while this file, which posts to the slashed form directly, stayed green. The agent prompt no longer shares a blocking assertion with the keyframes: the page degrades to a hint when it is missing, so a per-object outage on it must not switch the demo off. A Slack ok:false rejection on an outage is now an ::error:: with a step-summary line, matching the missing-credential path. Corrected what the comments claimed: generation is explicitly out of scope in both headers, since the job is cancelled as soon as a worker takes it; "the demo is currently on" now says the flag on main; the GITHUB_TOKEN fallback no longer promises something org policy governs; and set-experiment-flag's finally catches a throw, not a crash. Verified against production comfy.org: 9/9 green, the island check resolving two real bundles (client + MiniMaxH3Demo, both 200 JS) and the POST probe seeing the real 308. Fallback path exercised against a local flag-off build: reported as informational, island check skipped. lint, 892 unit tests, actionlint and shellcheck clean.
…re it to start Third review round. All three blocking findings were introduced by my own previous commits. The "job accepted but never scheduled" guard was dead code. It only failed when the queue readout proved no worker existed, but the deployment's control-plane URL is unset in production, so the readout never carries a worker census, the capacity was always null and the early return fired on every run. A job that is accepted and never runs therefore reported green forever while visitors watched a permanent spinner — the single likeliest way this demo breaks. The check now plainly requires the job to leave `queued`, absorbs a cold start with a 240s window instead of with an escape hatch, and quotes the census only when it happens to be there. That also makes both file headers true where they claim a green run means "accepted and started". The kill switch still keyed on the flag committed to `main` even though the test had just been changed to refuse to. Those disagree either side of a deploy, and the repo flag was wrong in both directions: it would revert a flag someone had turned on but not yet shipped, and stay silent when `main` said off while production still served a broken runner. The page spec now emits DEMO_RUNNER_LIVE, the workflow reads it, and the flip is gated on what a visitor is actually being shown — which is also the only thing a flag flip can change, and which stops firing on its own once the fallback ships. The case where the flip cannot help, because the flag is already off and only a deploy will ship it, now has its own Slack message instead of silence. Cancel rejected the healthiest possible outcome. The SDK leaves a job that reached a terminal state in it, so a deployment fast enough to finish the clip between the poll and the cancel answers `succeeded` — and the assertion, which accepted only `canceling` and `canceled`, would have opened a kill-switch PR against a demo that had just rendered a video. The faster the backend, the more likely the false takedown. Also closed the retry gaps that let one transient blip prepare a kill switch: the three CDN reads inside the un-retried submit spec now retry in-place, and the poll forgives a single bad response before failing. The production guard tolerates a trailing slash so a dispatch typed with one does not test production and then silently decline to act. Reason truncation is character-based, because these diagnoses contain em dashes and GNU cut counts bytes. Verified against production comfy.org: 9/9 green, DEMO_RUNNER_LIVE=true parsed by the workflow's own extraction. Summarize logic exercised on synthetic logs for runner-live, fallback and page-unreachable, confirming the kill switch arms only on the first and that a 300-character truncation stays valid UTF-8. lint, 892 unit tests, actionlint and shellcheck clean.
…assing on a dead route Fourth review round. A page that does not answer produced total silence. DEMO_RUNNER_LIVE is printed after the page spec's status assertion, so a 404 emitted no token at all and demo_live was the empty string — which matched neither the kill-switch gate nor any notify clause, while the test step's continue-on-error kept the job green. The demo's worst outage, and the one the page diagnosis is written for, was the only one nobody heard about. demo_live now has three states rather than two: an absent token reads as `unknown`, which still must not arm the kill switch — a flag flip cannot restore a missing page — but now has its own Slack message saying the page did not answer and pointing at the router. The slashless POST probe returned early on any non-3xx, so vitest passed an assertion-free test on a 404, 403, 405 or 5xx: exactly the outage it exists to catch, and the same FE-1932 shape its sibling GET probe fails on. The non-redirect branch now requires the 400 that proves the handler ran and rejected the empty body, and the redirect branch additionally pins the target to the form the submit spec drives. The "broken in front of users" alert could also fire off a preview origin, since DEMO_LIVE describes whatever was tested while FLAG_ENABLED always describes `main`; that branch now checks IS_PRODUCTION and a preview dispatch falls through to the honest "changed nothing" message. And the demo page claimed the flag "flips unattended when the demo's backend goes down", which the workflow header and the policy doc in this same PR both explicitly deny — corrected, without disturbing the conclusion it supports about holding noindex constant. Also trued up two rationales a future editor would apply: the test header now describes what the file actually drives rather than four calls, and the retry note names the three job-bound specs that stay at zero rather than mischaracterising them as the only non-idempotent ones. The optional PAT is listed in the header. Verified: 9/9 green against production comfy.org. The run probe now fails on an origin where the route is absent (405) where it previously passed silently, and a 404 page yields demo_live=unknown, leaves the kill switch disarmed and fires the new notify clause. lint, 892 unit tests, astro check 0 errors, actionlint and shellcheck clean.
Both flagged as nitpicks in review. The notify step lists five reasons to speak, not four, and the integration config attributed submit and poll's 'a rerun would disturb a real job' reasoning to the cancel spec as well — where it does not hold, since a repeated DELETE answers with the same terminal status the spec already accepts. Comment-only; no behaviour change.
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Both blockers fixed, plus the rebase. Detail is in the two inline replies; summarising here since the review body raised them together. 1. Dead API path — rebased onto main and retargeted to 2. Push to Your note that #1213 and #1215 already fixed the 404 and the 403 in production is the useful part, because it means this check was about to be pointed at bugs that no longer exist while missing the ones that do. Reviewing it in that light turned up several ways it would have been actively wrong, and those are the bulk of the diff: Would have switched off a working demo
Would have stayed quiet about a broken one
Verification — 9/9 against production comfy.org including submit, poll and cancel; the island check resolving two real bundles; Two things I deliberately did not do, both worth a second opinion:
Two pre-existing items for separate tickets: |
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Inline comments:
In @.github/workflows/minimax-demo-integration.yml:
- Around line 76-78: Add a reasonable timeout-minutes value to the check job
definition, alongside runs-on and env, so hung setup, network, or runner
execution cannot block queued runs indefinitely.
In `@site/docs/shipping-experiments-policy.md`:
- Line 141: Rename the Rule 4 heading to state that the health check “prepares
the flip” rather than “flips” the flag, preserving the documented manual,
human-driven workflow.
In `@site/scripts/set-experiment-flag.ts`:
- Around line 52-53: Guard the lookup in the set-experiment-flag flow before
accessing existing.enabled: when current[name as ExperimentName] is undefined,
fail with a clear diagnostic that the flag is missing from the JSON data file.
Preserve the existing changed calculation and workflow output for entries that
are present.
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- Push a commit to this branch (recommended)
- Create a new PR with the fixes
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… from the JSON Three CodeRabbit findings, all valid on inspection. The job had no timeout-minutes. With `cancel-in-progress: false`, a run wedged on a hung socket or a stuck runner would sit on GitHub's 360-minute default — longer than the 6-hourly schedule — and block every scheduled and post-deploy run queued behind it. Capped at 20, against a suite whose own ceiling is about six minutes. Rule 4's heading still said the health check "flips" the flag. The body of that rule was corrected earlier to "prepares, not performs"; the heading was missed, so the two contradicted each other on the one point the rule exists to make. set-experiment-flag validated the name against the config module and then read the record from the JSON data file. A flag present in the first but not the second is `undefined`, and the bare property access threw a Node stack before the `changed` output was written — leaving CI's kill switch silently disarmed, from a script whose whole design is to fail with a diagnosis rather than a mystery. Confirmed `tsc` does catch the divergence, so reaching it takes deliberate effort; the guard is defence in depth for a failure whose blast radius is out of proportion to its likelihood. Verified: the guard prints the diagnostic where a raw stack used to appear, and the on/off/no-op paths still emit the changed contract the workflow reads (true/false/true). 9/9 integration green against production comfy.org, lint, 892 unit tests, astro check 0 errors, actionlint and shellcheck clean.
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Drive-by from reviewing #1216 (now merged). Not a request to change this PR's scope — one line of it, if you agree. The promo video is now the single largest thing on
Measured on live
That is 61.5% of the must-load subtotal (HTML + CSS + JS + carousel slide-1 video + 6 carousel posters + the promo poster), and ~53% of the ~6.2 MB the page weighs in total — the figure #1216 quotes. Of the 33 And it is below the fold. Stacking the heights — navbar ~72 px, carousel Suggested change, entirely inside One thing that will not work: adding Roughly +12/−8 lines. Takes Separately, and out of scope here: the asset lives at Also a small correction for the record: #1216's description credits #1208 with adding this. #1208 only rewrote the two URLs to |
`autoplay` overrides the `preload` hint, so pairing the two pulled the whole 3.4 MB body during parse. Reduced-motion users paid it too: the old script could only strip the attribute after the browser had committed to the fetch, so they downloaded the clip in full to look at a static poster. Replaces it with the visibility gate `workflow-pages/Thumbnail.astro` picked up in #1216 — `preload="none"`, no autoplay, IntersectionObserver at `rootMargin: '200px'`. Copied rather than shared, because Astro bundles a component's script only into pages that render it and Thumbnail is used exclusively by `workflow-pages/cards/*`, none of which appear on /workflows/. The reduced-motion branch folds into the gate's condition and now also subscribes to `change`, so switching the preference on mid-playback stops the clip instead of waiting for the next scroll. Measured on the hub index with the flag on: - reduced motion: 0 requests for example.mp4, `readyState 0` — was 3,402,799 B - short desktop window (1280x640): deferred outright, 0 B until scrolled to - common viewports: the block sits 571-860px down depending on viewport width, so it is usually already in view and the gate opens straight away Not a first-paint byte saving in the general case, and the comment says so. Moving the page's total byte weight needs the asset itself to shrink: it lives outside the `hub-media` manifest, so #1216's VMAF re-encode pass never saw it.
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@deepme987 — re: your drive-by on the promo video ( Agreed on the defect, taken in The defect reproduces, and it is worse than "wasted bytes"Measured in Chromium against the hub index with the flag on, old code vs new:
The reduced-motion row is the part worth naming. The old script did its job — it removed Correction: the gate does not get
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| viewport | block top | video fetched at rest? |
|---|---|---|
| 412×823 (Lighthouse default) | 571 | yes — above the fold |
| 390×844 | 571 | yes |
| 1350×940 | 860 | yes |
| 1366×768 | 860 | yes — 92px gap, inside rootMargin: '200px' |
| 1280×640 | 860 | no — 0 B until scrolled to |
| 1440×600 | 860 | no — 0 B until scrolled to |
site/lighthouserc.json sets no preset, so LHCI runs Lighthouse's default mobile emulation at 412×823 — where the block sits at 571px, comfortably inside the initial viewport. No rootMargin defers an element that is already visible, so tuning it to 0px would not help either: that only changes the 1366×768 row and leaves the other five as they are.
So when the flag goes on, /workflows/ stays around the 6.2 MB you measured, against the 7 MiB total-byte-weight error budget — roughly 1 MB of headroom, and the gate does not reclaim any of it. That makes the re-encode you filed as out-of-scope the only lever on this number, rather than a someday cleanup: the asset is the entire delta, and anything else on that page growing by ~1 MB turns the flag flip into a red Lighthouse run. I have left it alone here (it is on media.comfy.org outside the hub-media manifest, so it needs the encode pipeline, not this PR), but the code comment names it as the next step so it does not get lost.
What the change does buy, all measured: 3.4 MB → 0 for reduced-motion users; the fetch off the parse-time critical path so it stops competing with the carousel's LCP video; playback stopping when scrolled away; and full deferral on short windows. Worth doing — just not as a first-paint byte saving, and the comment in the file says so in those words rather than claiming the 2.8 MB.
Two deviations from the spec
1. No no-observer fallback. You asked for the current play() as the fallback branch, matching Thumbnail.astro. I dropped it. IntersectionObserver has been baseline since 2019, so the branch is unreachable in anything this site builds for — and if it ever did run it would fetch the full 3.4 MB immediately, which is the one behaviour this change exists to remove. Without it the poster simply stays, which is the better degradation for a 3.4 MB clip even if it is the wrong trade for Thumbnail's small card videos. Happy to put it back if you would rather the two copies stay literally identical.
2. Added a change subscription on the media query. Beyond your ask. Reading reducedMotion.matches only inside the observer callback means that once intersection settles, toggling the OS preference does nothing — so turning reduce on mid-playback left the clip running. Now both directions take effect immediately: verified pausing with currentTime held at 3.39s across two samples, and resuming on toggle back, both without scrolling. Thumbnail.astro has the same gap; I have not touched it here.
Otherwise it is your spec: preload="none", no autoplay, IntersectionObserver at rootMargin: '200px', poster/muted/loop/playsinline untouched, reduced-motion folded into the gate's condition rather than sitting beside it.
Your data-gated-video warning was right and I confirmed it before writing the script — Thumbnail.astro is imported only by workflow-pages/cards/{CardOverlayImage,IndexCard,MediaCard,SplitCard}.astro, none of which render on /workflows/, so the shared script never reaches this page. Hence the local copy, with that reasoning in a comment so the next person does not try to consolidate them.
Attribution correction confirmed too: git log -S puts the block at 71f43419 (#1177), and #1208 only rewrote the two URLs.
Verification: pnpm lint, prettier --check, astro check (0 errors) and 892/892 unit tests. Flag-off path re-checked — the block and its script are both absent from the HTML, not hidden in it. The one console error visible under emulated reduced motion is pre-existing and unrelated: FeaturedCarousel.vue SSRs :autoplay="autoplayEnabled" from a client-only media query, so it hydration-mismatches whenever the preference is set. That file is untouched by this PR.
Below: the reduced-motion state (poster paints, zero video bytes) and the normal-motion state once the gate opens.
Screenshots
⚡ Lighthouse Results
Scores are out of 100. 🟢 90+ | 🟠 50-89 | 🔴 0-49 Generated by Site CI workflow |
4 participants
PR Created by the Glary-Bot Agent
Follow-up on FE-1932. Adds the integration check that would have caught the outage, and a flag that hides the demo cleanly instead of deleting it.
Current live status of the 404
Still broken, and comfy-router#39 is the only reason. The router fix is merged (
9d52ea1) but its deploy job isworkflow_dispatch-only and has never been run — production is still onea7007a.comfy.org/api/workflows/minimax-h3-multiref/queuex-served-by: vercel-websiteworkflow-templates.vercel.app/...(same app, direct)The
x-served-byheader is the proof: the request is still reaching the marketing origin. Everything else is healthy — I submitted a real job through the Vercel origin end to end (submit → poll → cancel, all 200), and the CDN reference images from #1208 all serve 200.A second bug is queued up behind the 404. Astro's CSRF guard compares the browser's
Originagainst its own computed origin. Behind the router those differ, so the demo's multipart POST is rejected:Deploying the router alone would have turned the 404 into a 403. This PR fixes that with
security.allowedDomains(hostname-only — addingprotocolmakes Astro dropX-Forwarded-Protoand fall back tohttp, which still fails). Verified against Astro's own validator, including thatcomfy.org.evil.comis still rejected.1–2. The integration test, and what it says right now
site/tests/integration/minimax-h3-demo.test.tsdrives the same four calls the page makes, against a real deployment: queue readout → submit three references → poll → cancel. It sends a browser-shaped request — realOriginheader, real image bytes fetched from the CDN,multipart/form-data— because each of those is what one of the three known regressions turned on. It cancels the job inafterAll, so it costs seconds of GPU, not a full render.It is red on production and green on the origin behind it — which is the isolation proof. Kept out of
pnpm test, which stays hermetic and offline.3 + 5. CI: switch the feature off, don't block the release
.github/workflows/minimax-demo-integration.ymlruns every 6h, after each site deploy, and on demand. On failure it flips the flag off, commits, and posts to Slack using thechat.postMessage+jq -e '.ok == true'pattern from ComfyUI_frontend. It never fails the job — the demo's backend is private beta behind a pre-alpha router, and a red check there must not hold up unrelated template releases. "Blocking the deploy" happens by shipping the feature off, not by blocking the pipeline.Recovery is not automatic: a green run only reports that the demo could go back on. Alert-fatigue matters here — "healthy while switched off" is the shipped steady state, so recovery is only announced on manual dispatches; scheduled runs put it in the step summary.
Needs
secrets.SLACK_BOT_TOKENandvars.SLACK_HUB_ALERTS_CHANNEL_IDadded to this repo. Both are optional at runtime — the step warns and skips, so the flag flip still happens.Deliberately not included: the flip does not trigger a production deploy itself. It reaches users on the next site build, and the Slack message says so with a one-click link to run Deploy Template Site. Letting an automated health check deploy the worker in front of all of comfy.org is exactly the blast radius this thread has been careful about — that should be someone's explicit call.
4. The flag, and the static fallback
site/src/data/experiment-flags.jsonis repo-owned and read at build time, so the disabled branch is absent from the emitted HTML rather than hidden by client JS — crawlers and users get identical bytes. Verified on real build output:/workflows/index.htmlcontains the promoMiniMaxH3Demoisland<meta name="robots">noindexnoindexThe demo page is also no longer
prerender = false— nothing in its frontmatter needs a request, so it's now statically generated (the API routes keep theirs).noindexis held constant in both states and deliberately not wired to the flag: the flag flips unattended on backend downtime, and indexability that flaps with uptime teaches crawlers the URL is unreliable — worse than never indexing it.Off state serves a fallback shaped like a normal template page, with CTAs that go somewhere that works (screenshots below).
6. SEO / conversion review
The demo page is
noindex, so it earns no ranking at all — the thing it was partly there to do. The real cost is on/workflows, which is indexed:utm_*and nodata-*— I confirmed on the live page. PostHog runsautocapture: falseand tracks only by delegation on specific hooks, so every click into the demo is invisible in the funnel. We can't even measure the diversion.That last one is fixed here: internal experiment entry points now fire
hub:experiment_cta_clicked, the fallback's outbound Cloud CTA carriesrun-cloud-btn, and unit tests assert the hooks are on the elements.Note: PR #1209, which was meant to remove this promo, was never merged — the promo is still live today. This PR supersedes it by gating rather than deleting.
7. Policy doc
site/docs/shipping-experiments-policy.md— four rules and a checklist for putting unpolished surfaces in front of traffic: don't take a primary CTA slot, don't cannibalize keywords or nav targets, instrument it or you're guessing, ship it behind a flag with a health check that flips it. Placed here becausesite/already owns the hub'sseo-setup-guide.mdandab-testing-guide.md, and there is no dedicated marketing-docs repo (docs/is the user-facing product site).It records that this promo knowingly violates its own Rule 1 and must satisfy it before the flag goes back on — rather than shipping a rule whose worked example fails it.
Verification
pnpm test— 779 passing (59 files), incl. 4 newpnpm lint— clean;pnpm run check— 0 errors, 0 warningsprettier --check— clean on all touchedsite/files (format:checkfails identically onmain; pre-existing)astro buildin both flag states, output greped; both pages driven in a browserfetch failed, andTimeoutErrordeep-reviewer; final verdict PASS/ship. Fixed along the way: theprotocolkey that silently defeated the CSRF fix, a recovery alert that would have posted 4×/day forever, a kill switch that failed silently, and an override guard whose test asserted a property nothing enforced.The flag ships off, so merging this hides the demo immediately — which answers the "should we just take this down" question without deleting the work.
Screenshots