(not much time, but ...)
URL: https://www.labcorp.com/wps/portal/pati ... ll/billing
Allow labcorp.com.
You enter some info & end up at pic#1.
Click 'Pay Bill' & another window opens, pic#2. That window has a frame in there.
If Allow Global is not elected, then the frame does not populate & the page (frame I suppose) acts as it is continually refreshing (certainly looping).
Allow Global & the frame populates & you can finish up with the payment. (Not a good thing in that respect

Nothing in Error Console that I saw.
No other domains or blocked objects or the like that I noticed.

