Tests: Skip module tests in Edge

Edge sometimes doesn't execute module scripts. It needs to be investigated why
but for now, we're skipping the test to make our tests more stable.

Closes jquerygh-4140

Author: mgol

test/unit/manipulation.js

@@ -1797,7 +1797,13 @@ QUnit.test( "html(Function)", function( assert ) {
 	testHtml( manipulationFunctionReturningObj, assert  );
 } );
 
-QUnit[ QUnit.moduleTypeSupported ? "test" : "skip" ]( "html(script type module)", function( assert ) {
+QUnit[
+	// Support: Edge 16-17
+	// Edge sometimes doesn't execute module scripts so skip the test there.
+	( QUnit.moduleTypeSupported && !/edge\//i.test( navigator.userAgent ) ) ?
+		"test" :
+		"skip"
+]( "html(script type module)", function( assert ) {
 	assert.expect( 4 );
 	var done = assert.async(),
 		$fixture = jQuery( "#qunit-fixture" );