Fixes #11426: getting the responseText of an xhr should be tried/caught because of IE's inability to give access to binary data. Unit test added.

2 files changed, 14 insertions, 0 deletions

diff --git a/test/data/1x1.jpg b/test/data/1x1.jpg
new file mode 100644
index 000000000..b0d69110f
--- /dev/null
+++ b/test/data/1x1.jpg
diff --git a/test/unit/ajax.js b/test/unit/ajax.js
index 38ce7c479..cca457db1 100644
--- a/test/unit/ajax.js
+++ b/test/unit/ajax.js
@@ -2322,6 +2322,20 @@ test("jQuery.ajax - abort in prefilter", function() {
 
 });
 
+test( "jQuery.ajax - loading binary data shouldn't throw an exception in IE (#11426)", 1, function() {
+	stop();
+	jQuery.ajax( url( "data/1x1.jpg" ), {
+		success: function( data ) {
+			ok( data === undefined || /JFIF/.test( data ) , "success callback reached" );
+			start();
+		},
+		error: function( _, __, error ) {
+			ok( false, "exception thrown: '" + error + "'" );
+			start();
+		}
+	});
+});
+
 test("jQuery.ajax - active counter", function() {
     ok( jQuery.active == 0, "ajax active counter should be zero: " + jQuery.active );
 });