km@km-tp ~/p/v/m/e/Wikibase> ack IE8 --js
extensions/ValueView/src/jquery.valueview.Expert.js
112:		if ( !( viewPortNode.nodeType ) ) { // IE8 can't check for instanceof HTMLElement

vendor/data-values/data-types/js/lib/qunit/qunit.js
1082:			// Avoid "Member not found" error in IE8 caused by messing with window.constructor

vendor/data-values/javascript/lib/qunit/qunit.js
1018:			// Avoid "Member not found" error in IE8 caused by messing with window.constructor

vendor/data-values/javascript/lib/require/require.js
1857:                    //in IE8, node.attachEvent does not have toString()

vendor/data-values/javascript/lib/jquery/jquery.js
455:			// IE8,9 Will throw exceptions on certain host objects #9897
3827:		// IE8 returns a string for some attributes even when not present
5208:			// IE8 - Some boolean attributes are not treated correctly
5215:			// IE8 throws error here (do not put tests after this one)
5231:			// IE8 throws error here (do not put tests after this one)
8362:	 * Additionally XMLHttpRequest can be disabled in IE7/IE8 so
8998:// Remove in 2.0 - this supports IE8's panic based approach

lib/resources/jquery.wikibase/jquery.wikibase.wbtooltip.js
198:		// The DOM content needs to be cloned since IE8 will lose the reference to the DOM content

view/resources/wikibase/templates.js
68:		// ignore case since IE8 will convert tag names to upper case
80:		// back-references in IE8).
82:		// However, it does not work in IE8 and may cause errors for certain DOM structures in other
106:				continue; // omit white space between tag and text (IE8)
108:				// Strip line breaks inserted by IE8 that are not stripped by the regular expression
120:		// We are not interested in letter case and since IE8 is causing problems due to having
195:	 * Returns the parsed plain template. (Overridden due to IE8 returning objects instead of