Please add style.filter = alpha(opacity=xxxx) to webix.js, also the css files, thanks.
In most places, where it necessary we already have such styling.
Can you please point to exact use-case where opacity is not applied in IE8?
(there were broken builds for Webix 2.1 or Webix 2.2, where styles for IE8 was missed, must not be a problem for Webix 2.3 )
Yes, I am using Webix 2.3. Try to setting
clipboard:true
to datatable, then you can see the problem on top left of the screen.
I can confirm the issue.
Fix will be available as part of next build.
Thanks