it works

Don't work

Doesn't Work document.getElementsByClassName('myiframe')[0].contentWindow.document Uncaught SecurityError: Failed to read a named property 'document' from 'Window': Blocked a frame with origin "https://xxxxxxxx.com" from accessing a cross-origin frame.

Works out of the box

simple and works

excelent work

Well done, the icon could be designed better tho

Nice job, easy and functional , wish you the Best