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I am working on a website on my localhost and suddenly I'm now getting this errors.

I get this error on Firefox

<script> source URI is not allowed in this document

And nothing on chrome,` but if I try using the files code, I get:

Application Error: There was a problem getting data for the application you requested. The application may not be valid, or there may be a temporary glitch. Please try again later.

It is basically for: https://connect.facebook.net/en_US/sdk.js.

The browser doesn't even send a GET request for the file.

Everything used to work perfect before. Not sure why I'm getting this.

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1 Answer 1

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21

I had an extension installed on both of my browsers. It was preventing it from loading.

If you have any VPNs, hide-tracking extensions, then it needs to be disabled.

In my case it was Disconnect firefox/chrome extension.

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5
  • 1
    u saved my sanity! :) the crazy thing is that this issue just started out of the blue after everything worked for more then a week
    – Nimrod Yonatan Ben-Nes
    Commented Feb 21, 2019 at 7:03
  • 1
    A possible cause that has arisen after this answer (I think) is Firefox tracking protection. Try disabling that to resolve this too.
    – frederickf
    Commented Jul 10, 2020 at 18:48
  • In my case it was Ghostery firefox addon. Disabling it solves the problem for me.
    – btwiuse
    Commented Apr 13, 2022 at 19:15
  • Mine is uBlock extension
    – pea3nut
    Commented Aug 22, 2022 at 14:11
  • 1
    Not an extension here. I do load a local script file from a local html file in the same folder though, maybe that's it?
    – Axel Köhler
    Commented Oct 31, 2022 at 15:35

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