According to https://developer.mozilla.org/en- US/docs/Web/API/structuredClone the option is only experimental and included in Safari 15.4 (Came out in March 14, 2022)
So for the newer version of pdfjs it sounds like it will only work with the most recent version of safari -- You received this bug notification because you are a member of Mahara Contributors, which is subscribed to Mahara. Matching subscriptions: mahara-contributors https://bugs.launchpad.net/bugs/1962580 Title: Blocktype PDF - Missing command icons on PDF viewer Status in Mahara: Confirmed Status in Mahara 21.10 series: Confirmed Status in Mahara 22.04 series: Confirmed 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 To manage notifications about this bug go to: https://bugs.launchpad.net/mahara/+bug/1962580/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~mahara-contributors Post to : [email protected] Unsubscribe : https://launchpad.net/~mahara-contributors More help : https://help.launchpad.net/ListHelp

