Fixed #1438 where a filter could be set in IE but not have opacity in it. The JS error was fixed by checking to make sure 'opacity=' is in the filter before seeing what its value is.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/core.js b/src/core.js
index bd6d929d5..5a842d5e7 100644
--- a/src/core.js
+++ b/src/core.js
@@ -1064,7 +1064,7 @@ jQuery.extend({
 						(parseFloat( value ).toString() == "NaN" ? "" : "alpha(opacity=" + value * 100 + ")");
 				}
 	
-				return elem.filter ? 
+				return elem.filter && elem.filter.indexOf("opacity=") >= 0 ?
 					(parseFloat( elem.filter.match(/opacity=([^)]*)/)[1] ) / 100).toString() :
 					"";
 			}