Makes sure "adding" a string to a Callbacks object doesn't cause a stack overflow, just ignore the value like 1.7.x righfully did. Fixes #12233. Unit tests added.

1 files changed, 9 insertions, 0 deletions

diff --git a/test/unit/callbacks.js b/test/unit/callbacks.js
index 2bc5c92d6..2c708bb59 100644
--- a/test/unit/callbacks.js
+++ b/test/unit/callbacks.js
@@ -250,3 +250,12 @@ test( "jQuery.Callbacks.remove - should remove all instances", function() {
 		ok( true, "end of test" );
 	}).remove( fn ).fire();
 });
+
+test( "jQuery.Callbacks() - adding a string doesn't cause a stack overflow", function() {
+
+	expect( 1 );
+
+	jQuery.Callbacks().add( "hello world" );
+
+	ok( true, "no stack overflow" );
+});