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Reconnect pageload and serving request under `cacheComponents`

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#24,298 1 comment 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
35/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Active
Tech stack
typescript

Research direction

No files or tests are named. Start by locating the cacheComponents handling and the browser/server trace-context entry points, then inspect how cached shell HTML and dynamic holes are rendered. Done means pageload trace X and server trace Y reconnect without replaying stale context from the cached shell, with coverage for a cacheComponents page.

Written by the indexing model from the issue text.

Description

javascript

Example: any cacheComponents page. The browser records pageload trace X, the server records request trace Y, and they never meet. The SDK currently disables the sentry-trace meta tags. because the shell HTML is cached and baked-in context would replay one stale trace to every visitor. Result: two orphan traces per visit. A slow pageload cannot be followed into its server work.

Solves: the incomplete-traces complaint. This is the gap users notice first.

Fix idea: carry trace context only in the part of the response that is never cached. For example, a small component rendered inside a dynamic hole streams the meta tag or script with trace Y's context, and the browser SDK picks it up. The prerendered shell stays context-free. This sketch has no prototype behind it yet - research this first.

Dominant language
TypeScript
Stars
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Forks
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Avg merge
1d 18h
Merged PRs (30d)
562

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