WebObject to change a variable in Storyline 360

Thanks everyone
I discovered the WebObject not updating when looking at the coding in the published file.  So I have been fiddling with the code of the index.html file on the fly  to try and get it to work with the debugger in Edge.

It still doesn't work (I get that "DOMException: Blocked a frame with origin "null" from accessing a cross-origin frame" error) when I publish the file to my PC but when I publish it online it works perfectly.  There seems to be some security hitch somewhere  maybe blocking natively installed files interacting? Or maybe I am launching the course from the wrong file?  

No matter though, as long as it works in 360Review and in my LMS when I publish it in my course, that's all that matters!

Thank you so much for your input.  I am very shaky on all this JavaScript stuff.  I have all these wonderful ideas to make my courses more engaging and realistic (I mostly make software simulation for my training). If I could utilise JS more to make it feel like the actual system the better.  Also importing tones of images and shapes in SL bloats the course size and issues with the course loading with our less than perfect network speeds. Screen recordings only get you so far.