SaaS CMS has officially launched! Learn more now.

Which browsers does EpiServer Forms supports?


In the developer guide for EpiServer Forms it says on top of every page:

"Note: Episerver Forms is only supported by MVC-based websites and HTML5-compliant browsers."

You can see this message on this url:

I need to show a message to the user if the user has a web browser that is not compliant with EpiServer Forms. So, what is an HTML5-compliant browser? On my Chrome browser says that my browser has 535 points of 555 points. Is that an HTML5-compliant browser? In this case, I guess so.

In IE11 I get the score 312 points, in IE10 267 points.

So, again, what is an HTML5-compliant browser?

I guess that I need to check some HTML5-features to be able to tell the user if the browser is "good enough" to be able to fill in the form and post it.

One solution is to check some HTML5-features with the Javascript library Modernizr. But which HTML5-features does the browser needs to pass to be able to fill in the form and post it?

Modernizr.inputtypes and Modernizr.input? Any more?

Jun 11, 2019 21:14

It should support same browsers as the core framework

Jun 12, 2019 6:16

@Quan Mai: The link to the system requirements ( has this text:


Client requirements for BROWSING

Browser for viewing

The supported web browsers for viewing depend on the implementation. Most standard web browsers are generally supported. 


And in the bottom of this document:


Episerver Forms

  • Episerver Forms is only supported by MVC-based websites and HTML5-compliant browsers.


I am sorry, but this does not help me. :(

Jun 12, 2019 7:07

Actually we use below Html 5 features:

  • session storage
  • placeholders
  • required attribute
  • data attribute
  • range element

And officially test on browsers: IE/FF/Chrome/Edge.

Jun 13, 2019 4:45
This topic was created over six months ago and has been resolved. If you have a similar question, please create a new topic and refer to this one.
* You are NOT allowed to include any hyperlinks in the post because your account hasn't associated to your company. User profile should be updated.