Scratch that, just punting on Opera and 304s for now - there may not be a good soluti...

diff --git a/src/ajax.js b/src/ajax.js
index aa4e3ec..bfae782 100644 (file)
--- a/src/ajax.js
+++ b/src/ajax.js
@@ -629,11 +629,8 @@ 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:" ||
-                               ( xhr.status >= 200 && xhr.status < 300 ) ||
-                               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();
+                               xhr.status >= 200 && xhr.status < 300 ||
+                               xhr.status === 304 || xhr.status === 1223;
                } catch(e) {}
 
                return false;
@@ -652,8 +649,7 @@ jQuery.extend( jQuery.ajax, {
                        jQuery.ajax.etag[url] = etag;
                }
 
-               // Opera returns 0 when status is 304
-               return xhr.status === 304 || xhr.status === 0 && !xhr.getAllResponseHeaders();
+               return xhr.status === 304;
        },
 
        httpData: function( xhr, type, s ) {