Ajax: .load() should trim its selector

Fixes #14773
(cherry picked from commit 3a68c114e3a30af86dc261c9d62ce2ae4144d420)

Conflicts:
	src/ajax/load.js

1 files changed, 8 insertions, 0 deletions

diff --git a/test/unit/ajax.js b/test/unit/ajax.js
index 80531f984..4b4e408a3 100644
--- a/test/unit/ajax.js
+++ b/test/unit/ajax.js
@@ -1850,6 +1850,14 @@ module( "ajax", {
 		});
 	});
 
+	// Selector should be trimmed to avoid leading spaces (#14773)
+	asyncTest( "jQuery.fn.load( URL_SELECTOR with spaces )", 1, function() {
+		jQuery("#first").load( "data/test3.html   #superuser ", function() {
+			strictEqual( jQuery( this ).children("div").length, 1, "Verify that specific elements were injected" );
+			start();
+		});
+	});
+
 	asyncTest( "jQuery.fn.load( String, Function ) - simple: inject text into DOM", 2, function() {
 		jQuery("#first").load( url("data/name.html"), function() {
 			ok( /^ERROR/.test(jQuery("#first").text()), "Check if content was injected into the DOM" );