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Fetch support when XMLHttpRequest isn't available #342

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Fetch support when XMLHttpRequest isn't available #342

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130 changes: 98 additions & 32 deletions dist/mixpanel.amd.js
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Original file line number Diff line number Diff line change
Expand Up @@ -37,7 +37,7 @@ define(function () { 'use strict';
var hasOwnProperty = ObjProto.hasOwnProperty;
var windowConsole = window$1.console;
var navigator = window$1.navigator;
var document$1 = window$1.document;
var document = window$1.document;
var windowOpera = window$1.opera;
var screen = window$1.screen;
var userAgent = navigator.userAgent;
Expand Down Expand Up @@ -978,7 +978,7 @@ define(function () { 'use strict';
_.cookie = {
get: function(name) {
var nameEQ = name + '=';
var ca = document$1.cookie.split(';');
var ca = document.cookie.split(';');
for (var i = 0; i < ca.length; i++) {
var c = ca[i];
while (c.charAt(0) == ' ') {
Expand Down Expand Up @@ -1009,7 +1009,7 @@ define(function () { 'use strict';
if (domain_override) {
cdomain = '; domain=' + domain_override;
} else if (is_cross_subdomain) {
var domain = extract_domain(document$1.location.hostname);
var domain = extract_domain(document.location.hostname);
cdomain = domain ? '; domain=.' + domain : '';
}

Expand All @@ -1027,7 +1027,7 @@ define(function () { 'use strict';
secure += '; secure';
}

document$1.cookie = name + '=' + encodeURIComponent(value) + expires + '; path=/' + cdomain + secure;
document.cookie = name + '=' + encodeURIComponent(value) + expires + '; path=/' + cdomain + secure;
},

set: function(name, value, days, is_cross_subdomain, is_secure, is_cross_site, domain_override) {
Expand All @@ -1036,7 +1036,7 @@ define(function () { 'use strict';
if (domain_override) {
cdomain = '; domain=' + domain_override;
} else if (is_cross_subdomain) {
var domain = extract_domain(document$1.location.hostname);
var domain = extract_domain(document.location.hostname);
cdomain = domain ? '; domain=.' + domain : '';
}

Expand All @@ -1055,7 +1055,7 @@ define(function () { 'use strict';
}

var new_cookie_val = name + '=' + encodeURIComponent(value) + expires + '; path=/' + cdomain + secure;
document$1.cookie = new_cookie_val;
document.cookie = new_cookie_val;
return new_cookie_val;
},

Expand Down Expand Up @@ -1257,21 +1257,21 @@ define(function () { 'use strict';

function getElementsBySelector(selector) {
// Attempt to fail gracefully in lesser browsers
if (!document$1.getElementsByTagName) {
if (!document.getElementsByTagName) {
return [];
}
// Split selector in to tokens
var tokens = selector.split(' ');
var token, bits, tagName, found, foundCount, i, j, k, elements, currentContextIndex;
var currentContext = [document$1];
var currentContext = [document];
for (i = 0; i < tokens.length; i++) {
token = tokens[i].replace(/^\s+/, '').replace(/\s+$/, '');
if (token.indexOf('#') > -1) {
// Token is an ID selector
bits = token.split('#');
tagName = bits[0];
var id = bits[1];
var element = document$1.getElementById(id);
var element = document.getElementById(id);
if (!element || (tagName && element.nodeName.toLowerCase() != tagName)) {
// element not found or tag with that ID not found, return false
return [];
Expand Down Expand Up @@ -1418,7 +1418,7 @@ define(function () { 'use strict';
kw = '',
params = {};
_.each(campaign_keywords, function(kwkey) {
kw = _.getQueryParam(document$1.URL, kwkey);
kw = _.getQueryParam(document.URL, kwkey);
if (kw.length) {
params[kwkey] = kw;
}
Expand Down Expand Up @@ -1599,8 +1599,8 @@ define(function () { 'use strict';
return _.extend(_.strip_empty_properties({
'$os': _.info.os(),
'$browser': _.info.browser(userAgent, navigator.vendor, windowOpera),
'$referrer': document$1.referrer,
'$referring_domain': _.info.referringDomain(document$1.referrer),
'$referrer': document.referrer,
'$referring_domain': _.info.referringDomain(document.referrer),
'$device': _.info.device(userAgent)
}), {
'$current_url': window$1.location.href,
Expand All @@ -1626,7 +1626,7 @@ define(function () { 'use strict';
pageviewInfo: function(page) {
return _.strip_empty_properties({
'mp_page': page,
'mp_referrer': document$1.referrer,
'mp_referrer': document.referrer,
'mp_browser': _.info.browser(userAgent, navigator.vendor, windowOpera),
'mp_platform': _.info.os()
});
Expand Down Expand Up @@ -4055,11 +4055,12 @@ define(function () { 'use strict';
// http://hacks.mozilla.org/2009/07/cross-site-xmlhttprequest-with-cors/
// https://developer.mozilla.org/en-US/docs/DOM/XMLHttpRequest#withCredentials
var USE_XHR = (window$1.XMLHttpRequest && 'withCredentials' in new XMLHttpRequest());
var USE_FETCH = !_.isUndefined(fetch) && typeof(fetch) === 'function'

// IE<10 does not support cross-origin XHR's but script tags
// with defer won't block window.onload; ENQUEUE_REQUESTS
// should only be true for Opera<12
var ENQUEUE_REQUESTS = !USE_XHR && (userAgent.indexOf('MSIE') === -1) && (userAgent.indexOf('Mozilla') === -1);
var ENQUEUE_REQUESTS = !USE_XHR && !USE_FETCH && (userAgent.indexOf('MSIE') === -1) && (userAgent.indexOf('Mozilla') === -1);

// save reference to navigator.sendBeacon so it can be minified
var sendBeacon = null;
Expand Down Expand Up @@ -4276,7 +4277,7 @@ define(function () { 'use strict';
}
});
window$1.addEventListener('visibilitychange', function() {
if (document$1['visibilityState'] === 'hidden') {
if (document['visibilityState'] === 'hidden') {
flush_on_unload();
}
});
Expand Down Expand Up @@ -4309,12 +4310,12 @@ define(function () { 'use strict';

// update persistence with info on referrer, UTM params, etc
MixpanelLib.prototype._set_default_superprops = function() {
this['persistence'].update_search_keyword(document$1.referrer);
this['persistence'].update_search_keyword(document.referrer);
if (this.get_config('store_google')) {
this['persistence'].update_campaign_params();
}
if (this.get_config('save_referrer')) {
this['persistence'].update_referrer_info(document$1.referrer);
this['persistence'].update_referrer_info(document.referrer);
}
};

Expand Down Expand Up @@ -4362,7 +4363,7 @@ define(function () { 'use strict';
return null;
}

if (USE_XHR) {
if (USE_XHR || USE_FETCH) {
var callback_function = function(response) {
callback(response, data);
};
Expand Down Expand Up @@ -4402,7 +4403,7 @@ define(function () { 'use strict';
options = null;
}
options = _.extend(DEFAULT_OPTIONS, options || {});
if (!USE_XHR) {
if (!USE_XHR && !USE_FETCH) {
options.method = 'GET';
}
var use_post = options.method === 'POST';
Expand All @@ -4415,7 +4416,7 @@ define(function () { 'use strict';
if (this.get_config('test')) { data['test'] = 1; }
if (verbose_mode) { data['verbose'] = 1; }
if (this.get_config('img')) { data['img'] = 1; }
if (!USE_XHR) {
if (!USE_XHR && !USE_FETCH) {
if (callback) {
data['callback'] = callback;
} else if (verbose_mode || this.get_config('test')) {
Expand All @@ -4439,9 +4440,9 @@ define(function () { 'use strict';

var lib = this;
if ('img' in data) {
var img = document$1.createElement('img');
var img = document.createElement('img');
img.src = url;
document$1.body.appendChild(img);
document.body.appendChild(img);
} else if (use_sendBeacon) {
try {
succeeded = sendBeacon(url, body_data);
Expand Down Expand Up @@ -4525,13 +4526,78 @@ define(function () { 'use strict';
lib.report_error(e);
succeeded = false;
}
} else if (USE_FETCH) {
try {
var headers = this.get_config('xhr_headers');
if (use_post) {
headers['Content-Type'] = 'application/x-www-form-urlencoded';
}

var fetchOpts = {
method: options.method,
mode: 'cors',
credentials: 'include',
headers: headers,
body: body_data
};

fetch(url, fetchOpts)
.then(function (response) {
return response.text().then(function (body) {
return {
status: response.status,
statusText: response.statusText,
headers: response.headers,
body: body
};
});
})
.then(function (res) {
if (res.status === 200) {
if (callback) {
var body = res.body;
if (verbose_mode) {
var response;
try {
response = _.JSONDecode(body);
} catch (e) {
lib.report_error(e);
if (options.ignore_json_errors) {
response = body;
} else {
return;
}
}
callback(response);
} else {
callback(Number(body));
}
}
} else {
var error = 'Bad HTTP status: ' + res.status + ' ' + res.statusText;
lib.report_error(error);

if (callback) {
if (verbose_mode) {
var xhr_req = { status: res.status, responseHeaders: res.headers };
callback({ status: 0, error: error, xhr_req: xhr_req });
} else {
callback(0);
}
}
}
});
} catch (e) {
lib.report_error(e);
succeeded = false;
}
} else {
var script = document$1.createElement('script');
var script = document.createElement('script');
script.type = 'text/javascript';
script.async = true;
script.defer = true;
script.src = url;
var s = document$1.getElementsByTagName('script')[0];
var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(script, s);
}

Expand Down Expand Up @@ -4968,7 +5034,7 @@ define(function () { 'use strict';
*/
MixpanelLib.prototype.track_pageview = function(page) {
if (_.isUndefined(page)) {
page = document$1.location.href;
page = document.location.href;
}
this.track('mp_page_view', _.info.pageviewInfo(page));
};
Expand Down Expand Up @@ -5925,7 +5991,7 @@ define(function () { 'use strict';

function do_scroll_check() {
try {
document$1.documentElement.doScroll('left');
document.documentElement.doScroll('left');
} catch(e) {
setTimeout(do_scroll_check, 1);
return;
Expand All @@ -5934,19 +6000,19 @@ define(function () { 'use strict';
dom_loaded_handler();
}

if (document$1.addEventListener) {
if (document$1.readyState === 'complete') {
if (document.addEventListener) {
if (document.readyState === 'complete') {
// safari 4 can fire the DOMContentLoaded event before loading all
// external JS (including this file). you will see some copypasta
// on the internet that checks for 'complete' and 'loaded', but
// 'loaded' is an IE thing
dom_loaded_handler();
} else {
document$1.addEventListener('DOMContentLoaded', dom_loaded_handler, false);
document.addEventListener('DOMContentLoaded', dom_loaded_handler, false);
}
} else if (document$1.attachEvent) {
} else if (document.attachEvent) {
// IE
document$1.attachEvent('onreadystatechange', dom_loaded_handler);
document.attachEvent('onreadystatechange', dom_loaded_handler);

// check to make sure we arn't in a frame
var toplevel = false;
Expand All @@ -5956,7 +6022,7 @@ define(function () { 'use strict';
// noop
}

if (document$1.documentElement.doScroll && toplevel) {
if (document.documentElement.doScroll && toplevel) {
do_scroll_check();
}
}
Expand Down
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