JavaScript Error with Adaptive Forms in IE

[#1]

We are developing a new Adaptive Forms application in AEM 6.4 and are seeing a javascript error reported by IE and Edge....

Object doesn't support property or method 'includes'

File: af.js, Line: 12, Column: 9

Everything works fine in other browsers, but IE and Edge throw this javascript error on radio button clicks, tabbing from one form field to another, etc. I know IE doesn't support "includes", but I'm not sure we should be going into af.js to rewrite that. Can Modernizr help us here? Any other solutions?

[#2 · Accepted solution]

So sorry I didn't reply sooner. It's been crazy around here.

This particular issue has been resolved. Turns out this was custom code and not part of the OOTB AF code.

[#3]

Good to know that this is sorted now, the very reason I asked you for the application package as I was thinking it to be coming from the custom code.

[#4]

Can you please share sample form package? Or, is it happening with the default templates as well?

[#5]

Any follow-up on this? Is this a known issue? Seems like a bug to me. It's a fairly urgent matter for us, as we're looking to deploy ASAP. Any guidance would be appreciated.

[#6]

[#7]

I do not notice any issue on Edge, please attach the forms add-on package details and screenshot of browser debugger console.

Thanks