From: Michał Gołębiowski-Owczarek <m.goleb@gmail.com>
Date: Mon, 26 Aug 2019 17:01:26 +0000 (+0200)
Subject: Ajax: Simplify jQuery.ajaxSettings.xhr
X-Git-Tag: 4.0.0-beta~255
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=abdc89ac2e581392b800c0364e0f5f2b6a82cdc6;p=jquery.git

Ajax: Simplify jQuery.ajaxSettings.xhr

Previously, jQuery.ajaxSettings.xhr, contents were wrapped in a try-catch
as we defined jQuery.support.ajax & jQuery.support.cors executed during the
jQuery load and we didn't want to crash if IE had native XHR disabled (which
is possible). While jQuery hasn't supported the ActiveX-based XHR since 2.0,
jQuery with XHR disabled could still be used for its other features in such
a crippled browser.

Since gh-4347, jQuery.support.ajax & jQuery.support.cors no longer exist, so
we don't need the try-catch anymore.

Fixes gh-1967
Closes gh-4467
Ref gh-4347
---

diff --git a/src/ajax/xhr.js b/src/ajax/xhr.js
index 16a2ac3d8..3578ba167 100644
--- a/src/ajax/xhr.js
+++ b/src/ajax/xhr.js
@@ -6,9 +6,7 @@ define( [
 "use strict";
 
 jQuery.ajaxSettings.xhr = function() {
-	try {
-		return new window.XMLHttpRequest();
-	} catch ( e ) {}
+	return new window.XMLHttpRequest();
 };
 
 var xhrSuccessStatus = {