GeezerVison — GitHub - pixiebrix/srcdoc-iframe-content-script: Minimum reproduction of the sandboxed iframe messaging issue

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This repository was archived by the owner on Oct 14, 2026. It is now read-only.

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Name		Name	Last commit message	Last commit date
dist		dist
LICENSE		LICENSE
README.md		README.md
minimum-extension-repro.iml		minimum-extension-repro.iml

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Steps to Reproduce

Load the dist folder in chrome://extensions
Navigate to https://pbx.vercel.app/frame-src/
Open the service worker devtools and the page devtools
Click on the button
See that the top-level frame respond
See that the srcDoc frames throw

Verify non-srcdoc iframes succeed

Navigate to https://ephiframe.vercel.app/Pixie
Ensure the service worker devtools and the page devtools are still open
Click on the button
See that the top-level frame and iframes responsd

Loom recording of the reproduction

https://www.loom.com/share/ebf8d393f2274e06ab4c93b696709b0e

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Minimum reproduction of the sandboxed iframe messaging issue

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