Chrome Extension: Inject content_scripts into blob URL

Asked Aug 15 '22 at 08:38

Active Aug 15 '22 at 09:31

Viewed 278 times

Problem Setup

This example html:

<html>
    <head>
        <script>
            let blob = new Blob(["<html>Blob content!</html>"], {type: 'text/html'});
            let blobUrl= URL.createObjectURL(blob);
            window.location.href = blobUrl;
        </script>
    </head>
    <body>
        Initial Page
    </body>
</html>

Produces a new html page with the content: <html>Blob content!</html>.

The page URL is: blob:null/c608e557-cacb-4bec-bce2-1f68c6315415

I have a chrome extension with the manifest.json looking something like this:

"content_scripts": [{
    "matches": ["<all_urls>"],
    "match_origin_as_fallback": true,
    "run_at": "document_idle",
    "js": ["getPage.js"],
    "all_frames": true
}]

Question

Why does the content_script getPage.js not get injected into the blob URL?

edited Aug 15 '22 at 09:31

asked Aug 15 '22 at 08:38

Simon S.

Could it be because doesn't match blob: ? – Simon S. Aug 15 '22 at 08:40
This may be a relevant source for the problem: https://developer.chrome.com/docs/extensions/mv3/content_scripts/#injecting-in-related-frames – Simon S. Aug 15 '22 at 09:32
1

Your code works for me, the content script is injected, when html is served from localhost. When file:// URL is used it doesn't work which may be considered a bug in Chrome. – wOxxOm Aug 15 '22 at 15:10
Which manifest version are you using? Does it work with manifest version 2? – Simon S. Aug 15 '22 at 15:45
I tested with MV3. I don't have the files anymore. – wOxxOm Aug 15 '22 at 17:35

Chrome Extension: Inject content_scripts into blob URL

Problem Setup

Question

0 Answers0