iFrame URLs: Another unexpected UR12 modification

I was moving some custom code into a customer’s development environment when I noticed what I consider a breaking change that I am assuming was added in Update Rollup 12.

The URL field on an iFrame’s properties is now converted to a fully-qualified URL.

Imagine starting with this:



Here we have a custom ASP.NET web page located in the ISV folder system.

If you edit this field’s value, it will turn into this:



Which is an invalid URL.


UPDATE: It gets worse. It seems that we can’t use the standard placeholder of about:blank either.


Our only option, at this point, is to actually set the value of the iFrame using JavaScript:




Note: This is only an issue if you edit the iFrame properties. If you leave them alone, you will not encounter this problem.

Leave a Reply 0 comments