Fix #13993. Save result of native inline handlers. Close gh-1368.

(cherry picked from commit 3bcd04f5)

src/event.js

@@ -318,8 +318,11 @@ jQuery.event = {
 
 			// Native handler
 			handle = ontype && cur[ ontype ];
-			if ( handle && jQuery.acceptData( cur ) && handle.apply && handle.apply( cur, data ) === false ) {
-				event.preventDefault();
+			if ( handle && handle.apply && jQuery.acceptData( cur ) ) {
+				event.result = handle.apply( cur, data );
+				if ( event.result === false ) {
+					event.preventDefault();
+				}
 			}
 		}
 		event.type = type;

test/unit/event.js

@@ -2686,3 +2686,11 @@ test( "String.prototype.namespace does not cause trigger() to throw (#13360)", f
 	equal( errored, false, "trigger() did not throw exception" );
 	delete String.prototype.namespace;
 });
+
+test( "Inline event result is returned (#13993)", function() {
+	expect( 1 );
+
+	var result = jQuery("<p onclick='return 42'>hello</p>").triggerHandler("click");
+
+	equal( result, 42, "inline handler returned value" );
+});