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Browser preview route crashes runtime on transient ECONNRESET

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#1,982 0 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
74/100
Issue type
Bug
Clarity
Clearly specified
Activity status
Quiet
Tech stack
node.js, typescript

Research direction

Start in browser-preview-routing.js around fetchBrowserPreviewRoutedHost and fulfillBrowserPreviewRoutedHost, using the ECONNRESET evidence from Homeboy run c5bd79ee-f9c7-479e-bb1f-73cca37e98d2 as context. Add regression coverage that injects an ECONNRESET for a subresource, then verify asset failures do not terminate the process while document navigation failures remain explicit scenario failures.

Written by the indexing model from the issue text.

Description

Problem

A transient asset proxy reset in browser preview routing escapes the route handler as an unhandled rejection and terminates the entire WP Codebox recipe process.

Evidence

During a valid multisite browser scenario, the runtime crashed while fetching a non-critical theme font:

route.fetch: read ECONNRESET
GET /wp-content/themes/extrachill/assets/fonts/Lobster2.woff2
at fetchBrowserPreviewRoutedHost (.../browser-preview-routing.js:287:36)
at fulfillBrowserPreviewRoutedHost (.../browser-preview-routing.js:219:28)

The backend suite had completed and no changed browser assertion executed. Homeboy run: c5bd79ee-f9c7-479e-bb1f-73cca37e98d2.

Expected

Preview routing handles transient upstream fetch failures without crashing the Node process. The individual request may fail/abort and should be recorded as network evidence, while the browser scenario and cleanup remain under normal lifecycle control.

Acceptance criteria

  1. route.fetch() rejection is caught inside preview routing.
  2. A failed non-document asset request does not terminate the recipe process.
  3. Document navigation failures remain explicit scenario failures.
  4. Regression coverage injects an ECONNRESET for a subresource.

AI assistance

  • AI assistance: Yes
  • Tool: OpenCode with GPT-5.6 Sol
  • Used for: Capturing and classifying the disposable browser-runtime crash.
Dominant language
TypeScript
Stars
17
Forks
4
Avg merge
48m
Merged PRs (30d)
106

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