Using the IE cache fix from XMLHttpRequest.js allows us to send asynchronous requests without a setTimeout handler. r=bartvde (closes #2065)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@10347 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Request/XMLHttpRequest.js

@@ -128,7 +128,7 @@
                 //
                 fCleanTransport(oRequest);
 // Uncomment this block if you need a fix for IE cache
-/*
+/**/
                 // BUGFIX: IE - cache issue
                 if (!oRequest._object.getResponseHeader("Date")) {
                     // Save object to cache
@@ -192,7 +192,7 @@
                     // Return now - wait until re-sent request is finished
                     return;
                 };
-*/
+/**/
                 // BUGFIX: IE - memory leak in interrupted
                 if (bIE && bAsync)
                     window.detachEvent("onunload", fOnUnload);