Support for DOM events is broken in IE11 on Windows 10

[pmmf85]

Help us to manage our issues by answering the following:

1. Describe your issue:
   DOM Events connected to HTML tags are broken in IE11 (Windows 10).

<input ref="input" onkeyup={ edit }>

Triggering keyup will provide error:

edit is undefined
function onkeyup(event)
{
{edit}
}

3.4.0 March 26, 2017 - works well
3.4.1 April 9, 2017 - does not work

2. Can you reproduce the issue?
   Visit and play with it for a bit and you should notice errors
   http://riotjs.com/examples/plunker/?app=todo-app

3. On which browser/OS does the issue appear?
   Windows 10, IE 11, Compatibility mode: IE 11 (Default) - not touched
   Note that on windows 8.1 Compatibility mode for IE 11 is not present. I can only choose IE 10 and Edge (Default). Error is not present on Win8.1

4. Which version of Riot does it affect?
   3.4.1 and above

5. How would you tag this issue?

• Question
• Bug
• Discussion
• Feature request
• Tip
• Enhancement
• Performance

[GianlucaGuarini]

I guess this patch should solve the problem even if i am not able to reproduce it

[perkastman]

We had the same problem, but upgrading to 3.5.0 solved it, so I can verify that the fix worked.