<!doctype html> <html lang=en> <meta charset=utf-8> <title>XMLHttpRequest: upload formdata with blob</title> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <link rel="help" href="https://xhr.spec.whatwg.org/#interface-formdata" data-tested-assertations="following::P[1]" /> <link rel="help" href="https://xhr.spec.whatwg.org/#dom-formdata" data-tested-assertations="following::P[2]" /> <link rel="help" href="https://xhr.spec.whatwg.org/#dom-formdata-append" data-tested-assertations=".. following::P[1]" /> <link rel="help" href="https://xhr.spec.whatwg.org/#dom-formdata-append" data-tested-assertations="following::P[2] following::UL[1]" /> <link rel="help" href="https://xhr.spec.whatwg.org/#dom-XMLHttpRequest-send-FormData" data-tested-assertations="following::DD[1]" /> <div id="log"></div> <script> function do_test (name, fd, expected) { var test = async_test(name); test.step(function() { var client = new XMLHttpRequest(); client.onreadystatechange = test.step_func(function () { if (client.readyState !== 4) return; assert_equals(client.responseText, expected); test.done(); }); client.open("POST", "resources/upload.py"); client.send(fd); }); } function create_formdata () { var fd = new FormData(); for (var i = 0; i < arguments.length; i++) { fd.append.apply(fd, arguments[i]); } return fd; } do_test("formdata with blob", create_formdata(['key', new Blob(['value'], {type: 'text/x-value'})]), '\nkey=blob:text/x-value:5,'); do_test("formdata with named blob", create_formdata(['key', new Blob(['value'], {type: 'text/x-value'}), 'blob.txt']), '\nkey=blob.txt:text/x-value:5,'); // If 3rd argument is given and 2nd is not a Blob, formdata.append() should throw var test = async_test('formdata.append() should throw if value is string and file name is given'); // needs to be async just because the others above are test.step(function(){ assert_throws(new TypeError(), function(){ create_formdata('a', 'b', 'c'); }); }); test.done(); </script>