X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fajax.js;h=aa4e3ec450ec519621f24f72e0c154072f571a51;hb=ba9e0fc177841bd74cc5ea4e52f09cd87d747bf5;hp=2c4f13cb2c3b1992b19863668432b34ec7ee1f81;hpb=c90d609c0d10a8792b0b31e226592fd707f45570;p=jquery.git

diff --git a/src/ajax.js b/src/ajax.js
index 2c4f13c..aa4e3ec 100644
--- a/src/ajax.js
+++ b/src/ajax.js
@@ -1,3 +1,5 @@
+(function( jQuery ) {
+
 var jsc = jQuery.now(),
 	rscript = /<script(.|\s)*?\/script>/gi,
 	rselectTextarea = /select|textarea/i,
@@ -627,9 +629,11 @@ jQuery.extend( jQuery.ajax, {
 		try {
 			// IE error sometimes returns 1223 when it should be 204 so treat it as success, see #1450
 			return !xhr.status && location.protocol === "file:" ||
-				// Opera returns 0 when status is 304
 				( xhr.status >= 200 && xhr.status < 300 ) ||
-				xhr.status === 304 || xhr.status === 1223 || xhr.status === 0;
+				xhr.status === 304 || xhr.status === 1223 ||
+				// Opera returns a status of 0 for redirects -
+				// We can detect this by the fact that Opera also doesn't return any headers
+				xhr.status === 0 && !xhr.getAllResponseHeaders();
 		} catch(e) {}
 
 		return false;
@@ -649,7 +653,7 @@ jQuery.extend( jQuery.ajax, {
 		}
 
 		// Opera returns 0 when status is 304
-		return xhr.status === 304 || xhr.status === 0;
+		return xhr.status === 304 || xhr.status === 0 && !xhr.getAllResponseHeaders();
 	},
 
 	httpData: function( xhr, type, s ) {
@@ -684,5 +688,10 @@ jQuery.extend( jQuery.ajax, {
 
 });
 
+// Does this browser support XHR requests?
+jQuery.support.ajax = !!jQuery.ajaxSettings.xhr();
+
 // For backwards compatibility
 jQuery.extend( jQuery.ajax );
+
+})( jQuery );