Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Avatar for Username

Hilfe durchsuchen

Vorsicht vor Support-Betrug: Wir fordern Sie niemals auf, eine Telefonnummer anzurufen, eine SMS an eine Telefonnummer zu senden oder persönliche Daten preiszugeben. Bitte melden Sie verdächtige Aktivitäten über die Funktion „Missbrauch melden“.

Learn More

Dieses Thema wurde archiviert. Bitte stellen Sie eine neue Frage, wenn Sie Hilfe benötigen.

Why did Firefox prevent a page from loading when it was fine a month ago?

Survivor35
Survivor35
more options

When using Verified by Visa to reload my Tim's card, I got the following message:

Blocked by Content Security Policy

This page has a content security policy that prevents it from being loaded in this way.

Firefox prevented this page from loading in this way because the page has a content security policy that disallows it.


How can this be fixed?

When using Verified by Visa to reload my Tim's card, I got the following message: Blocked by Content Security Policy This page has a content security policy that prevents it from being loaded in this way. Firefox prevented this page from loading in this way because the page has a content security policy that disallows it. How can this be fixed?

Alle Antworten (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

The website probably tries to load a page in an iframe and the website you try to embed has policy rules that prohibit this. The server would would have to make sure to send the proper HTTP response headers.

You can try to right-click this iframe and use "This Frame > Open Frame in New Tab".

See also:

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
more options

Another user posted a similar problem recently: Why do I receive a security block when I try to complete a "verified by Visa" form to reload my Macdonalds Archcard?