Core: rnotwhite -> rhtmlnotwhite and jQuery.trim -> stripAndCollapse

- Renames and changes rnotwhite to focus on HTML whitespace chars
- Change internal use of jQuery.trim to more accurate strip and collapse
- Adds tests to ensure HTML space characters are retained where valid
- Doesn't add tests where the difference is inconsequential and
  existing tests are adequate.

Fixes gh-3003
Fixes gh-3072
Close gh-3316

1 files changed, 11 insertions, 0 deletions

diff --git a/test/unit/ajax.js b/test/unit/ajax.js
index 5a3bd32d2..681aa463b 100644
--- a/test/unit/ajax.js
+++ b/test/unit/ajax.js
@@ -2327,6 +2327,17 @@ if ( typeof window.ArrayBuffer === "undefined" || typeof new XMLHttpRequest().re
 		} );
 	} );
 
+	// Selector should be trimmed to avoid leading spaces (#14773)
+	// Selector should include any valid non-HTML whitespace (#3003)
+	QUnit.test( "jQuery.fn.load( URL_SELECTOR with non-HTML whitespace(#3003) )", function( assert ) {
+		assert.expect( 1 );
+		var done = assert.async();
+		jQuery( "#first" ).load( "data/test3.html   #whitespace\\\\xA0 ", function() {
+			assert.strictEqual( jQuery( this ).children( "div" ).length, 1, "Verify that specific elements were injected" );
+			done();
+		} );
+	} );
+
 	QUnit.asyncTest( "jQuery.fn.load( String, Function ) - simple: inject text into DOM", 2, function( assert ) {
 		jQuery( "#first" ).load( url( "data/name.html" ), function() {
 			assert.ok( /^ERROR/.test( jQuery( "#first" ).text() ), "Check if content was injected into the DOM" );