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var fetchTextFromURL;
if (typeof XMLHttpRequest != 'undefined') {
fetchTextFromURL = function(url, authorization, fulfill, reject) {
var xhr = new XMLHttpRequest();
var sameDomain = true;
var doTimeout = false;
if (!('withCredentials' in xhr)) {
// check if same domain
var domainCheck = /^(\w+:)?\/\/([^\/]+)/.exec(url);
if (domainCheck) {
sameDomain = domainCheck[2] === window.location.host;
if (domainCheck[1])
sameDomain &= domainCheck[1] === window.location.protocol;
}
}
if (!sameDomain && typeof XDomainRequest != 'undefined') {
xhr = new XDomainRequest();
xhr.onload = load;
xhr.onerror = error;
xhr.ontimeout = error;
xhr.onprogress = function() {};
xhr.timeout = 0;
doTimeout = true;
}
function load() {
fulfill(xhr.responseText);
}
function error() {
reject(new Error('XHR error' + (xhr.status ? ' (' + xhr.status + (xhr.statusText ? ' ' + xhr.statusText : '') + ')' : '') + ' loading ' + url));
}
xhr.onreadystatechange = function () {
if (xhr.readyState === 4) {
// in Chrome on file:/// URLs, status is 0
if (xhr.status == 0) {
if (xhr.responseText) {
load();
}
else {
// when responseText is empty, wait for load or error event
// to inform if it is a 404 or empty file
xhr.addEventListener('error', error);
xhr.addEventListener('load', load);
}
}
else if (xhr.status === 200) {
load();
}
else {
error();
}
}
};
xhr.open("GET", url, true);
if (xhr.setRequestHeader) {
xhr.setRequestHeader('Accept', 'application/x-es-module, */*');
// can set "authorization: true" to enable withCredentials only
if (authorization) {
if (typeof authorization == 'string')
xhr.setRequestHeader('Authorization', authorization);
xhr.withCredentials = true;
}
}
if (doTimeout) {
setTimeout(function() {
xhr.send();
}, 0);
} else {
xhr.send(null);
}
};
}
else if (typeof require != 'undefined' && typeof process != 'undefined') {
var fs;
fetchTextFromURL = function(url, authorization, fulfill, reject) {
if (url.substr(0, 8) != 'file:///')
throw new Error('Unable to fetch "' + url + '". Only file URLs of the form file:/// allowed running in Node.');
fs = fs || require('fs');
if (isWindows)
url = url.replace(/\//g, '\\').substr(8);
else
url = url.substr(7);
return fs.readFile(url, function(err, data) {
if (err) {
return reject(err);
}
else {
// Strip Byte Order Mark out if it's the leading char
var dataString = data + '';
if (dataString[0] === '\ufeff')
dataString = dataString.substr(1);
fulfill(dataString);
}
});
};
}
else if (typeof self != 'undefined' && typeof self.fetch != 'undefined') {
fetchTextFromURL = function(url, authorization, fulfill, reject) {
var opts = {
headers: {'Accept': 'application/x-es-module, */*'}
};
if (authorization) {
if (typeof authorization == 'string')
opts.headers['Authorization'] = authorization;
opts.credentials = 'include';
}
fetch(url, opts)
.then(function (r) {
if (r.ok) {
return r.text();
} else {
throw new Error('Fetch error: ' + r.status + ' ' + r.statusText);
}
})
.then(fulfill, reject);
}
}
else {
throw new TypeError('No environment fetch API available.');
}
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