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Update to v1.0.2, including some code cleanup
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Jason Moon committed May 2, 2014
1 parent f77fa04 commit 1a7ea05
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196 changes: 104 additions & 92 deletions jQuery.XDomainRequest.js
Original file line number Diff line number Diff line change
@@ -1,102 +1,114 @@
// jQuery.XDomainRequest.js
// Author: Jason Moon - @JSONMOON
// IE8+
(function (factory) {
if (typeof define === 'function' && define.amd) {
// AMD. Register as anonymous module.
define(['jquery'], factory);
} else {
// Browser globals.
factory(jQuery);
}
}(function ($) {
/*!
* jQuery-ajaxTransport-XDomainRequest - v1.0.2 - 2014-05-02
* https://github.com/MoonScript/jQuery-ajaxTransport-XDomainRequest
* Copyright (c) 2014 Jason Moon (@JSONMOON)
* Licensed MIT (/blob/master/LICENSE.txt)
*/
(function(factory) {
if (typeof define === 'function' && define.amd) {
// AMD. Register as anonymous module.
define(['jquery'], factory);
} else {
// Browser globals.
factory(jQuery);
}
}(function($) {

// Only continue if we're on IE8/IE9 with jQuery 1.5+ (contains the ajaxTransport function)
if ($.support.cors || !$.ajaxTransport || !window.XDomainRequest) {
return;
}

if (!$.support.cors && $.ajaxTransport && window.XDomainRequest) {
var httpRegEx = /^https?:\/\//i;
var getOrPostRegEx = /^get|post$/i;
var sameSchemeRegEx = new RegExp('^'+location.protocol, 'i');
var htmlRegEx = /text\/html/i;
var jsonRegEx = /\/json/i;
var xmlRegEx = /\/xml/i;
var httpRegEx = /^https?:\/\//i;
var getOrPostRegEx = /^get|post$/i;

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@fearphage

fearphage Nov 6, 2014

There's a problem with your regular expression. It matches getty, lepost, etc. since you're looking for a string that starts with "get" or ends with "post". I believe what you wanted was /^(?:get|post)$/i.

Enjoy!
Obligatory image

var sameSchemeRegEx = new RegExp('^'+location.protocol, 'i');

// ajaxTransport exists in jQuery 1.5+
$.ajaxTransport('* text html xml json', function(options, userOptions, jqXHR) {

// ajaxTransport exists in jQuery 1.5+
$.ajaxTransport('* text html xml json', function(options, userOptions, jqXHR){
// XDomainRequests must be: asynchronous, GET or POST methods, HTTP or HTTPS protocol, and same scheme as calling page
if (options.crossDomain && options.async && getOrPostRegEx.test(options.type) && httpRegEx.test(options.url) && sameSchemeRegEx.test(options.url)) {
var xdr = null;
var userType = (userOptions.dataType||'').toLowerCase();
return {
send: function(headers, complete){
xdr = new XDomainRequest();
if (/^\d+$/.test(userOptions.timeout)) {
xdr.timeout = userOptions.timeout;
}
xdr.ontimeout = function(){
complete(500, 'timeout');
};
xdr.onload = function(){
var allResponseHeaders = 'Content-Length: ' + xdr.responseText.length + '\r\nContent-Type: ' + xdr.contentType;
var status = {
code: 200,
message: 'success'
};
var responses = {
text: xdr.responseText
};
// Only continue if the request is: asynchronous, uses GET or POST method, has HTTP or HTTPS protocol, and has the same scheme as the calling page
if (!options.crossDomain || !options.async || !getOrPostRegEx.test(options.type) || !httpRegEx.test(options.url) || !sameSchemeRegEx.test(options.url)) {
return;
}

var xdr = null;

return {
send: function(headers, complete) {
var postData = '';
var userType = (userOptions.dataType || '').toLowerCase();

xdr = new XDomainRequest();
if (/^\d+$/.test(userOptions.timeout)) {
xdr.timeout = userOptions.timeout;
}

xdr.ontimeout = function() {
complete(500, 'timeout');
};

xdr.onload = function() {
var allResponseHeaders = 'Content-Length: ' + xdr.responseText.length + '\r\nContent-Type: ' + xdr.contentType;
var status = {
code: 200,
message: 'success'
};
var responses = {
text: xdr.responseText
};
try {
if (userType === 'html' || /text\/html/i.test(xdr.contentType)) {
responses.html = xdr.responseText;
} else if (userType === 'json' || (userType !== 'text' && /\/json/i.test(xdr.contentType))) {
try {
if (userType === 'html' || htmlRegEx.test(xdr.contentType)) {
responses.html = xdr.responseText;
} else if (userType === 'json' || (userType !== 'text' && jsonRegEx.test(xdr.contentType))) {
try {
responses.json = $.parseJSON(xdr.responseText);
} catch(e) {
status.code = 500;
status.message = 'parseerror';
//throw 'Invalid JSON: ' + xdr.responseText;
}
} else if (userType === 'xml' || (userType !== 'text' && xmlRegEx.test(xdr.contentType))) {
var doc = new ActiveXObject('Microsoft.XMLDOM');
doc.async = false;
try {
doc.loadXML(xdr.responseText);
} catch(e) {
doc = undefined;
}
if (!doc || !doc.documentElement || doc.getElementsByTagName('parsererror').length) {
status.code = 500;
status.message = 'parseerror';
throw 'Invalid XML: ' + xdr.responseText;
}
responses.xml = doc;
}
} catch(parseMessage) {
throw parseMessage;
} finally {
complete(status.code, status.message, responses, allResponseHeaders);
responses.json = $.parseJSON(xdr.responseText);
} catch(e) {
status.code = 500;
status.message = 'parseerror';
//throw 'Invalid JSON: ' + xdr.responseText;
}
};
// set an empty handler for 'onprogress' so requests don't get aborted
xdr.onprogress = function(){};
xdr.onerror = function(){
complete(500, 'error', {
text: xdr.responseText
});
};
var postData = '';
if (userOptions.data) {
postData = ($.type(userOptions.data) === 'string') ? userOptions.data : $.param(userOptions.data);
}
xdr.open(options.type, options.url);
xdr.send(postData);
},
abort: function(){
if (xdr) {
xdr.abort();
} else if (userType === 'xml' || (userType !== 'text' && /\/xml/i.test(xdr.contentType))) {
var doc = new ActiveXObject('Microsoft.XMLDOM');
doc.async = false;
try {
doc.loadXML(xdr.responseText);
} catch(e) {
doc = undefined;
}
if (!doc || !doc.documentElement || doc.getElementsByTagName('parsererror').length) {
status.code = 500;
status.message = 'parseerror';
throw 'Invalid XML: ' + xdr.responseText;
}
responses.xml = doc;
}
} catch(parseMessage) {
throw parseMessage;
} finally {
complete(status.code, status.message, responses, allResponseHeaders);
}
};

// set an empty handler for 'onprogress' so requests don't get aborted
xdr.onprogress = function(){};
xdr.onerror = function() {
complete(500, 'error', {
text: xdr.responseText
});
};

if (userOptions.data) {
postData = ($.type(userOptions.data) === 'string') ? userOptions.data : $.param(userOptions.data);
}
xdr.open(options.type, options.url);
xdr.send(postData);
},
abort: function() {
if (xdr) {
xdr.abort();
}
}
});
}
};
});

}));
6 changes: 3 additions & 3 deletions jquery.xdomainrequest.min.js

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