After installing the MultimediaViewer extension, setting $wgIncludejQueryMigrate = true (bug 66098), and applying the fix for bug 67565, I get the following error in IE 8:

Object doesn't support this property or method
oojs.js, line 89 character 2

targetFn.prototype = Object.create( originFn.prototype, {
// Restore constructor property of targetFn
constructor: {

		value: targetConstructor,
		enumerable: false,
		writable: true,
		configurable: true

}
} );

Version: 1.24rc
Severity: minor