Misc: Drop support for older browsers; update support comments

That includes Opera 12.x, Firefox<29, Safari<6.0 and some hacks
for old Blackberry.

Closes gh-1820
Refs gh-1815

1 files changed, 2 insertions, 26 deletions

diff --git a/src/css/curCSS.js b/src/css/curCSS.js
index 420d19fa9..260184b47 100644
--- a/src/css/curCSS.js
+++ b/src/css/curCSS.js
@@ -7,8 +7,7 @@ define([
 ], function( jQuery, rnumnonpx, rmargin, getStyles ) {
 
 function curCSS( elem, name, computed ) {
-	var width, minWidth, maxWidth, ret,
-		style = elem.style;
+	var ret;
 
 	computed = computed || getStyles( elem );
 
@@ -23,33 +22,10 @@ function curCSS( elem, name, computed ) {
 		if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
 			ret = jQuery.style( elem, name );
 		}
-
-		// Support: iOS < 6
-		// A tribute to the "awesome hack by Dean Edwards"
-		// iOS < 6 (at least) returns percentage for a larger set of values,
-		// but width seems to be reliably pixels
-		// this is against the CSSOM draft spec:
-		// http://dev.w3.org/csswg/cssom/#resolved-values
-		if ( rnumnonpx.test( ret ) && rmargin.test( name ) ) {
-
-			// Remember the original values
-			width = style.width;
-			minWidth = style.minWidth;
-			maxWidth = style.maxWidth;
-
-			// Put in the new values to get a computed value out
-			style.minWidth = style.maxWidth = style.width = ret;
-			ret = computed.width;
-
-			// Revert the changed values
-			style.width = width;
-			style.minWidth = minWidth;
-			style.maxWidth = maxWidth;
-		}
 	}
 
 	return ret !== undefined ?
-		// Support: IE
+		// Support: IE9-11+
 		// IE returns zIndex value as an integer.
 		ret + "" :
 		ret;