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Script content does not work in iframe on another extension page

Suppose Google Chrome has 2 extensions installed.

The 1st extension launches content.js on w3.org:

manifest.json:

"content_scripts": [{ "matches": [ "https://www.w3.org/*" ], "all_frames": true, "js": [ "content.js" ] }]

content.js:

 alert('content');

The second extension has page.html, which loads w3.org in an iframe:

manifest.json:

 "web_accessible_resources": ["page.html"]

page.html:

 <!DOCTYPE html> <iframe src="https://www.w3.org/"></iframe>

Now enter the address bar chrome-extension://2nd-extension-id/page.html . You will see w3.com, but content.js has not been started (no alert() ). I do not see errors in the console.

Question: how to allow script content to run in this iframe?

I created a Chrome issue . Status: WontFix, unfortunately. But this may be changed in the future ...

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1 answer

You cannot with extensions, but you can do something similar in Google Apps: you can use webview instead of iframe. Therefore, you can enter the script through the executeScript method.

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Source: https://habr.com/ru/post/1244837/

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