 @mitya57 FYI since qtwebengine 5.15.2 internal pdf viewer switched to polymer v3, so v1 can be removed for now and v3 needs to be enabled
 I've been testing it by adding missing source to debian/ folder and it was working. Unfortunately missing-source is an unknown territory to me to provide a correct patch
 Thank you for reporting this! I have to exclude a lot of files because of DFSG, most of the time it is safe but not always, as you can see.
 Can I ask you to file a bug with steps to reproduce, to make it easier for me to fix it for Hirsute? (re @X: @mitya57 FYI since qtwebengine 5.15.2 internal pdf viewer switched to polymer v3, so v1 can be removed for now and v3 needs to be enabled)
 https://bugs.launchpad.net/ubuntu/+source/qtwebengine-opensource-src/+bug/1926089 (re @mitya57: Thank you for reporting this! I have to exclude a lot of files because of DFSG, most of the time it is safe but not always, as you can see.
 Can I ask you to file a bug with steps to reproduce, to make it easier for me to fix it for Hirsute?)
 Thanks a lot!
 No problem