Allow 304/Not Modified tests to complete in Opera.

test/unit/ajax.js

@@ -1247,8 +1247,16 @@ test("jQuery.ajax - If-Modified-Since support", function() {
 						ok(data == null, "response body should be empty")
 					}
 					start();
+				},
+				error: function() {
+					equals(false, "error");
+					start();
 				}
 			});
+		},
+		error: function() {
+			equals(false, "error");
+			start();
 		}
 	});
 });
@@ -1278,13 +1286,20 @@ test("jQuery.ajax - Etag support", function() {
 						ok(data == null, "response body should be empty")
 					}
 					start();
+				},
+				error: function() {
+					equals(false, "error");
+					start();
 				}
 			});
+		},
+		error: function() {
+			equals(false, "error");
+			start();
 		}
 	});
 });
 
-
 test("jQuery.ajax - active counter", function() {
     ok( jQuery.ajax.active == 0, "ajax active counter should be zero: " + jQuery.ajax.active );
 });