Has there been mass un-support for iFrame in the last 24 hours that I don't know about?
One of the pages on my website contains a rather large iframe which has been working perfectly fine for the last 7 months without being touched in any way. However today it stopped working. The page loads as expected but the iframe doesn't load anything.
I have checked the source code and it matches backups from the last 6 months, so nothing has changed there. Also, I have checked the iframe link is valid and working, so nothing wrong there. I have tried in several browsers but all show the iframe as being blank. I even tried on my phone and tablet (using different ISPs) but they show the iframe as being blank too.
I am literally stuck for words and ideas :/