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Ajax: remove "onunload" event handler

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Remove hack for IE lost connections, update for it was released
by Microsoft at November 12, 2013.
See https://support.microsoft.com/en-us/kb/2905733

Ref trac-5280
Ref gh-2047
This commit is contained in:
Oleg Gaidarenko 2015-04-02 11:55:57 +03:00
parent 9db9316609
commit a117dd05f6
1 changed files with 3 additions and 18 deletions
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21
src/ajax/xhr.js
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@ -10,9 +10,7 @@ jQuery.ajaxSettings.xhr = function() {
} catch ( e ) {}
};
var xhrId = 0,
xhrCallbacks = {},
xhrSuccessStatus = {
var xhrSuccessStatus = {
// file protocol always yields status code 0, assume 200
0: 200,
// Support: IE9
@ -21,17 +19,6 @@ var xhrId = 0,
},
xhrSupported = jQuery.ajaxSettings.xhr();
// Support: IE9
// Open requests must be manually aborted on unload (#5280)
// See https://support.microsoft.com/kb/2856746 for more info
if ( window.attachEvent ) {
window.attachEvent( "onunload", function() {
for ( var key in xhrCallbacks ) {
xhrCallbacks[ key ]();
}
});
}
support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
support.ajax = xhrSupported = !!xhrSupported;
@ -43,8 +30,7 @@ jQuery.ajaxTransport(function( options ) {
return {
send: function( headers, complete ) {
var i,
xhr = options.xhr(),
id = ++xhrId;
xhr = options.xhr();
xhr.open(
options.type,
@ -84,7 +70,6 @@ jQuery.ajaxTransport(function( options ) {
callback = function( type ) {
return function() {
if ( callback ) {
delete xhrCallbacks[ id ];
callback = xhr.onload = xhr.onerror = null;
if ( type === "abort" ) {
@ -117,7 +102,7 @@ jQuery.ajaxTransport(function( options ) {
xhr.onerror = callback("error");
// Create the abort callback
callback = xhrCallbacks[ id ] = callback("abort");
callback = callback("abort");
try {
// Do send the request (this may raise an exception)