mahara-contributors team mailing list archive

[Dianne Tennent <1962580@xxxxxxxxxxxxxxxxxx>]

I can confirm that our current version of PDF.js (2.13.216) is only
compatible with Safari 15.4 and above, due to the use of the
structuredClone() method: https://developer.mozilla.org/en-
US/docs/Web/API/structuredClone#browser_compatibility

This method is also used in the latest version of PDF.js (2.14.305), so
unfortunately, the only way to solve this problem is to upgrade Safari
to 15.4 or above. Hopefully your OS will allow you to do that. Otherwise
you might need to use Chrome or Firefox.

Cheers
Dianne

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https://bugs.launchpad.net/bugs/1962580

Title:
  Blocktype PDF - Missing command icons on PDF viewer

Status in Mahara:
  Incomplete

Bug description:
  Our Mahara 21.10 installation is on an Ubuntu 20.10 LTS Server running
  PHP 7.4.

  Using Safari in a view containing a PDF block the command button icons
  of the PDF viewer are not displayed (Buttons are graphically "empty").
  Nevertheless normal functionality is provided by clicking on those
  buttons.

  This issue doesn't appear on Firefox and Chrome. Looking at the
  console output it shows, that in Safari the icon svg files are fetched
  from a different location on the server than in Firefox and Chrome.

  
  Does anybody else has this issue?

  
  Cheers
  Alex

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