IE10 SCRIPT5009: ‘__doPostBack’ is undefined

There is apparently a bug in the browser definition files that shipped with .NET 2.0 and .NET 4. The definition files do not cater for IE10 as a browser version and hence defaults to a default definition which doesn’t support JavaScript. Scott Hanselman has a very detailed writeup about this issue here: http://www.hanselman.com/blog/BugAndFixASPNETFailsToDetectIE10CausingDoPostBackIsUndefinedJavaScriptErrorOrMaintainFF5ScrollbarPosition.aspx Scott proposes … Read more

internet explorer 10 – how to apply grayscale filter?

IE10 does not support DX filters as IE9 and earlier have done, nor does it support a prefixed version of the greyscale filter. However, you can use an SVG overlay in IE10 to accomplish the greyscaling. Example: img.grayscale:hover { filter: url(“data:image/svg+xml;utf8,<svg xmlns=\’http://www.w3.org/2000/svg\’><filter id=\’grayscale\’><feColorMatrix type=\’matrix\’ values=\’1 0 0 0 0, 0 1 0 0 0, 0 … Read more

What does the fr unit in a CSS Windows 8 metro style application mean?

Pertaining to your exact question, for this particular example, let’s assume that the total available width for the columns is 1200px. Since the first column width is fixed, it will occupy 638px and the remaining space (562px) will be free. Thus, in this case, 1fr = 562px Now let’s assume your styling is as follows:- … Read more

Access denied in IE 10 and 11 when ajax target is localhost

Internet Explorer raises this error as part of its security zones feature. Using default security settings, an “Access is Denied” error is raised when attempting to access a resource in the “Local intranet” zone from an origin in the “Internet” zone. If you were writing your Ajax code manually, Internet Explorer would raise an error … Read more

How can I make SmartScreen Filter trust a self-signed certificate

To quote from MSDN’s website: Detractors may claim that SmartScreen is “forcing” developers to spend money on certificates. It should be stressed that EV code signing certificates are not required to build or maintain reputation with SmartScreen. Files signed with standard code signing certificates and even unsigned files continue to build reputation as they have … Read more

Flex auto margin not working in IE10/11

This appears to be an IE bug. According to the flexbox specification: 8.1. Aligning with auto margins Prior to alignment via justify-content and align-self, any positive free space is distributed to auto margins in that dimension. Note: If free space is distributed to auto margins, the alignment properties will have no effect in that dimension … Read more

Check for IE 10 [duplicate]

The real way to detect this, without conditional comments and without User Agent sniffing is with conditional compilation: <script type=”text/javascript”> var isIE10 = false; /*@cc_on if (/^10/.test(@_jscript_version)) { isIE10 = true; } @*/ console.log(isIE10); </script> After running this code, you can use following anytime after: if (isIE10) { // Using Internet Explorer 10 } Reference: … Read more