That’s what the script does, check out its global regular expression, for extracting ISRCs from any text blurb:
/\b[A-Z]{2}\-?[A-Z0-9]{3}\-?[0-9]{2}\-?[0-9]{5}\b/g
I have added a heading and trailing \b in the line above, it is even better than the script version.
For the record, I have just tested your cue sheet on Firefox for Android with Violentmonkey: it worked in kepstin’s magicisrc.
So it’s supposed to work, on PC and mobile.