If a card has javascript in it (and many of mine do, to parse the note's tags and display the ones that are useful at review time), it will display on the phone as simple text (and, thus, not execute), filling the screen with a lot of useless data.
I see two options, perhaps implementable one after another:
Simply strip out the Githubissues.
Githubissues is a development platform for aggregating issues.
If a card has javascript in it (and many of mine do, to parse the note's tags and display the ones that are useful at review time), it will display on the phone as simple text (and, thus, not execute), filling the screen with a lot of useless data.
I see two options, perhaps implementable one after another: