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https://github.com/d0zingcat/cors-anywhere.git
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61d55ae41e
One of the following headers is required by default: - Origin: This header is always sent with CORS requests. - X-Requested-With: This header is automatically added by jQuery on same-origin requests. These two headers effectively disable the ability to use the CORS proxy for regular browsing.
143 lines
3.8 KiB
HTML
143 lines
3.8 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>Demo of CORS Anywhere</title>
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<meta name="viewport" content="width=device-width">
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<style>
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html, body {
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margin: 0;
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height: 100%;
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padding: 3px;
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font-family: Arial, sans-serif;
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font-size: 16px;
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}
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* {
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-moz-box-sizing: border-box;
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box-sizing: border-box;
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}
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label { display: block; }
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input {
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display: block;
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width: 100%;
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padding: 8px 5px;
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border: 1px solid #CCC;
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}
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button {
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display: inline-block;
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width: 49%;
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padding: 8px;
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}
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textarea {
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width: 100%;
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height: 100%;
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}
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#top {
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height: 180px;
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position: relative;
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}
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#bottom {
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height: 100%;
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margin-top: -180px;
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padding-top: 180px;
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}
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</style>
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</head>
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<body>
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<div id="top">
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CORS Anywhere demo • <a href="https://github.com/Rob--W/cors-anywhere/">Github</a> • <a href="http://cors-anywhere.herokuapp.com">Live server</a>.
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<label>
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Url to be fetched (example: <a href="//robwu.nl/dump.php">robwu.nl/dump.php</a>)
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<input type="url" id="url" value="">
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</label>
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<label>
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If using POST, enter the data:
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<input type="text" id="data">
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</label>
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<label>
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<button id="get">GET</button><button id="post">POST</button>
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</label>
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</div>
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<div id="bottom">
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<textarea id="output"></textarea>
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</div>
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<script>
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var protocol = location.protocol === 'http:' ? 'http:' : 'https:';
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var cors_api_url = protocol + '//cors-anywhere.herokuapp.com/';
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function doCORSRequest(options, redirectCount) {
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var x = new XMLHttpRequest();
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x.open(options.method, cors_api_url + options.url);
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x.onload = function() {
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if (x.status === 333) {
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redirectCount = +redirectCount ? +redirectCount + 1 : 1;
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var redirectInfo = /^(\d+) (.*)$/.exec(x.statusText);
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if (redirectInfo && redirectCount <= 5) {
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var originalStatus = +redirectInfo[1];
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var url = redirectInfo[2];
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if (originalStatus === 307 || originalStatus === 308) {
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// Correctly deal with method-preserving redirects
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options.url = url;
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doCORSRequest(options, redirectCount);
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} else {
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// Otherwise just change to GET
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doCORSRequest({
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method: 'GET',
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url: url,
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success: options.success,
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error: options.error
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}, redirectCount);
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}
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} else {
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options.error(options, x.status, x.statusText);
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}
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} else if (x.status >= 200 && x.status < 300 || x.status === 304) {
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options.success(options, x.status, x.statusText, x.responseText);
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} else {
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options.error(options, x.status, x.statusText);
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}
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};
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x.onerror = function() {
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options.error(options, x.status, x.statusText);
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};
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x.send(options.data);
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}
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// Bind event
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(function() {
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var urlField = document.getElementById('url');
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var dataField = document.getElementById('data');
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var outputField = document.getElementById('output');
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document.getElementById('get').onclick = function(e) {
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e.preventDefault();
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doCORSRequest({
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method: 'GET',
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url: urlField.value,
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success: onSuccess,
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error: onError
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});
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};
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document.getElementById('post').onclick = function(e) {
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e.preventDefault();
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doCORSRequest({
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method: 'POST',
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url: urlField.value,
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data: dataField.value,
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success: onSuccess,
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error: onError
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});
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};
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function onSuccess(options, statusCode, statusText, responseText) {
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outputField.value = options.method + ' ' + options.url + '\n' + statusCode + ' ' + statusText + '\n\n' + responseText;
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}
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function onError(options, statusCode, statusText) {
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outputField.value = options.method + ' ' + options.url + '\n' + statusCode + ' ' + statusText;
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}
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})();
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</script>
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</body>
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</html>
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