Firefox Klar Content Blocker on iPad Safari blocks font swapping

[0llie]

How to reproduce on iPad (pbly iPhone too):

• Activate Firefox Klar
• open an Angular Material Web App, eg. https://www.flimmo.de
  See:
  

Expected:

Manual fixes:

• disable Content Blocker, or use only eg BlockBear

References:
https://stackoverflow.com/a/67802003/229906

[isabelrios]

@SimonBasca can you please take a look at this issue when you have sometime? Thanks!

[SimonBasca]

I am unable to reproduce this issue on iPad Pro (iOS 14.6) on Safari using content blocker from Firefox Klar 8.1.7.
@0llie could you please provide the device and iOS version you are using?

[0llie]

It's an iPad Air 3rd gen, iOS 14.5.1, Klar 8.1.7

[SimonBasca]

Reproducing the issue after going to Focus / Klar and enabling the "Block Web font" option. Disabling this options does not reproduce the issue.

[0llie]

Thanks @SimonBasca. To recap:
Resolution: Open Focus/Klar App and disable Web font blocking.

Is not blocking bundled Web Fonts by default open for discussion?

[SimonBasca]

@0llie not sure what you mean by "Is not blocking bundled Web Fonts by default open for discussion?".
This" Block Web fonts" option is disabled by default. After enabling it's possible that some websites may not work properly.

[0llie]

Great! Then it's all good. I just can't remember having activated the Web Font blocking.