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Dev Tools & Micro-SaaS Webapps Stack Exchange · 2025-05-07

Chrome Overrides only work after opening DevTools: want persistent third-party JS patches

Chrome 的 Overrides 要先开 DevTools 才生效：想常驻修改第三方网站 JS

At a glance · 30-second read
  • WhoWebapps Stack Exchange · 2025-05-07 · 1 upvotes · 1 replies
  • The askChrome Overrides only work after opening DevTools: want persistent third-party JS patches
  • The openingA site-patch extension: persistent per-site JS/CSS patches that follow chunk hashes automatically. Open source plus sync service.

What was actually said

“I patch a third-party site's JS via DevTools → Source → Overrides. Works, but next visit it's inert until I open DevTools again — and the JS lives in webpack chunks, so swapping it isn't easy.”

— Webapps Stack Exchange · 2025-05-07 · webapps.stackexchange.com/questions/181228/override-…

Background and pain

The pain

Overrides are built for debugging, not daily use; hashed webpack chunks make persistent patches fragile.

A buildable angle

The opening

A site-patch extension: persistent per-site JS/CSS patches that follow chunk hashes automatically. Open source plus sync service.

How to validate it

  1. Read the whole thread and note the recurring scenarios — repetition is the density of the need.
  2. Search existing tools around "browser extension / web dev" and check which single step they actually cover.
  3. Put up a one-line landing page, share it back to Webapps Stack Exchange, and see whether anyone asks about pricing.

Existing options

TampermonkeyRequestly

From the thread · top comments

you can get dev-tools to open automatically, you just need to open chrome from the commandline and add some command line switches (or edit the browser's shortcut to add the commands) macOS: open -a "Google Chrome" --args --auto-open-devtools-for-tabs Windows: start chrome --auto-open-devtools-for-tabs Linux: google-chrome --auto-open-devtools-for-tabs

— mack nordstrum · ▲ 1
Open the source thread

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Related opportunities

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