Created attachment 536360 [details] Screen shot of IE8 Please correct me if I'm mistaken. I thought IE8 was on the list of non-supported browsers. Steps to reproduce: 1. Using IE8 go to markup-dev Expected: An error message suggesting the user upgrade to a modern browser is displayed. Actual: A popup window is displayed by IE8 with the following error message. The page also renders as mostly empty. ------ Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0) Timestamp: Tue, 31 May 2011 18:28:33 UTC Message: 'CanvasRenderingContext2D' is undefined Line: 27 Char: 1 Code: 0 URI: https://markup-dev.allizom.org/media/assets/js/markUp_app.min.js
hmm, has this patch landed on the dev env? I'm still experiencing the same behavior as seen in comment 0?
reopening for further investigation. I'm still seeing the broken behavior in IE8. Here's a brief screencast -> http://screencast.com/t/JKJTjBoKQE Let me know what additional artifacts I can provide to help diagnose the problem.
Making sure the feature detection script actually runs, and fixing a bug in canvas https://github.com/mozilla/markup/commit/419493f9effc7dbaa1a879cb27ffbb01c15db0b2
Thanks for the patch... the error message is displaying again in IE 8. QA verified.
Created attachment 536749 [details] Upgrade error message in IE8 And a screenshot of the upgrade message.