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Disable upgrading HTTP images to HTTPS site

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  • 8 views
  • Last reply by Terry

wybqogzigoxruxdhnp
wybqogzigoxruxdhnp
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Hi!

Is there any settings or about:config settings or addons that disable upgrading HTTP to HTTPS for images? I have HTTPS site which redirects from HTTP to HTTPS from server side so I cant visit it on HTTP mode. This HTTPS only site uses external images from HTTP only site that does not speak HTTPS.

Firefox writes in browser console: > Content Security Policy: Upgrading insecure request ‘http://site.com/someimage.jpg’ to use ‘https’

How do I disable this behavior? Any about:config settings or browser addons to get rid of this?

Hi! Is there any settings or about:config settings or addons that disable upgrading HTTP to HTTPS for images? I have HTTPS site which redirects from HTTP to HTTPS from server side so I cant visit it on HTTP mode. This HTTPS only site uses external images from HTTP only site that does not speak HTTPS. Firefox writes in browser console: > Content Security Policy: Upgrading insecure request ‘http://site.com/someimage.jpg’ to use ‘https’ How do I disable this behavior? Any about:config settings or browser addons to get rid of this?

All Replies (3)

cor-el
cor-el
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Can you post a link to a publicly accessible page (i.e. no authentication or signing on required)?

wybqogzigoxruxdhnp
wybqogzigoxruxdhnp Question owner
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Sorry, can't post link here.

But important key takeaway is that this page has <meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests"> in it's html source code and I either need some plugin to remove it from source code before Firefox starts to parse HTML or some hack to modify Firefox to ignore this.

It also had Upgrade-Insecure-Requests http header but that I was able to remove with Modify Header Value (HTTP Headers) addon so this meta tag is the only suspect left.

Modified by wybqogzigoxruxdhnp

Terry
Terry
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There is this preference in about:config which you can change to false. I don't know whether that is effective against such code on the website. browser.fixup.fallback-to-https

I see that I also have this preference (set to */*). image.http.accept

Modified by Terry