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How to resove: Firefox prevented this page from loading...

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Blocked by Content Security Policy

An error occurred during a connection to www.scribd.com.

"Firefox prevented this page from loading in this way because the page has a content security policy that disallows it." On IE, the message said it cannot be loaded in a FRAME. It's a letter!

I looked at and tried some instructions in Content Blocking. No solutions are there. Thank you.

Blocked by Content Security Policy An error occurred during a connection to www.scribd.com. "Firefox prevented this page from loading in this way because the page has a content security policy that disallows it." On IE, the message said it cannot be loaded in a FRAME. It's a letter! I looked at and tried some instructions in Content Blocking. No solutions are there. Thank you.
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Telepített bővítmények

  • Shockwave Flash 32.0 r0

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  • Felhasználói ügynök: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0

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cor-el
  • Top 10 Contributor
  • Moderator
17277 megoldás 156162 válasz

This isn't about content blocking, but about CSP policy rules. The website tries to load a page in an iframe and that isn't allowed.

The only workaround is to open the frame URL in a new tab (right-click: This Frame -> Open Frame in New Tab).

This isn't about content blocking, but about CSP policy rules. The website tries to load a page in an iframe and that isn't allowed. *https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP *https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy The only workaround is to open the frame URL in a new tab (right-click: This Frame -> Open Frame in New Tab).
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The option to right click to open isn't in Firefox, just IE. If so, it wouldn't bother me.

Thank you.

The option to right click to open isn't in Firefox, just IE. If so, it wouldn't bother me. Thank you.
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jscher2000
  • Top 10 Contributor
8516 megoldás 69554 válasz

Hi CiaoBella1, could you share a link to a page where you have this problem?

Hi CiaoBella1, could you share a link to a page where you have this problem?
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https://www.hollywoodreporter.com/news/nicki-minaj-criticized-by-human-rights-activists-saudi-arabia-concert-1222672 Thank you.
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jscher2000
  • Top 10 Contributor
8516 megoldás 69554 válasz

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Hi CiaoBella1, the framed page loads from:

https://www.scribd.com/embeds/415706656/content?start_page=1&view_mode=scroll&show_recommendations=false&access_key=key-toL6xFr7MUL7ayGHnS4i

and the page is sent with this header:

content-security-policy: frame-ancestors 'self'

"frame-ancestors" refers to what sites/pages are allowed to embed the content, and 'self' limits the embedding to https://www.scribd.com

That seems like a mistake, but it needs to be fixed by scribd. Until then, you can pop the frame that didn't load into a separate tab using:

right-click > This Frame > Open Frame in New Tab

Ref. https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/frame-ancestors

Hi CiaoBella1, the framed page loads from: https://www.scribd.com/embeds/415706656/content?start_page=1&view_mode=scroll&show_recommendations=false&access_key=key-toL6xFr7MUL7ayGHnS4i and the page is sent with this header: content-security-policy: frame-ancestors 'self' "frame-ancestors" refers to what sites/pages are allowed to embed the content, and 'self' limits the embedding to https://www.scribd.com That seems like a mistake, but it needs to be fixed by scribd. Until then, you can pop the frame that didn't load into a separate tab using: right-click > This Frame > Open Frame in New Tab Ref. https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/frame-ancestors
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I only understand that scribd has the issue.

Pop the frame? Don't understand, but I know that you cannot right click from FF.

I read the letter already. Can I assume it's a one-off issue (or low probability)?

Thank you for your effort and response. You shaved, didn't you?

I only understand that scribd has the issue. Pop the frame? Don't understand, but I know that you cannot right click from FF. I read the letter already. Can I assume it's a one-off issue (or low probability)? Thank you for your effort and response. You shaved, didn't you?
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jscher2000
  • Top 10 Contributor
8516 megoldás 69554 válasz

Hi CiaoBella1, yes, I shaved it.

I'm puzzled about this part:

I know that you cannot right click from FF.

You cannot right-click the "Blocked by Content Security Policy" text and get the context menu? Does it work any better if you hold down the Shift key while right-clicking?

Hi CiaoBella1, yes, I shaved it. I'm puzzled about this part: <blockquote>I know that you cannot right click from FF.</blockquote> You cannot right-click the "Blocked by Content Security Policy" text and get the context menu? Does it work any better if you hold down the Shift key while right-clicking?
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No website was underlined and I could not see that the website was scribd (if I remember correctly). So yes, I could not get any reaction to a potential right-click action. I think I learned from IE that it was scribd.com.

Just went to the website from the link I posted above. Apparently scribd.com fixed their error/s because the letter is now visible on the HR.

Thank you,

No website was underlined and I could not see that the website '''was''' scribd (if I remember correctly). So yes, I could not get any reaction to a potential right-click action. I think I learned from IE that it was scribd.com. Just went to the website from the link I posted above. Apparently scribd.com fixed their error/s because the letter is now visible on the HR. Thank you,
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cor-el
  • Top 10 Contributor
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17277 megoldás 156162 válasz

screenshot:

screenshot:
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Interesting - yes, I am sure the first screen box was what I saw (I've never worked w/it before) and ignored. The developer tools I don't know how to work with at all.

Ahh. Thank you.

Interesting - yes, I am sure the first screen box was what I saw (I've never worked w/it before) and ignored. The developer tools I don't know how to work with at all. Ahh. Thank you.
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