The Tor Browser: dom/workers/test/xhrAbort

     1 /**

     2  * Any copyright is dedicated to the Public Domain.

     3  * http://creativecommons.org/publicdomain/zero/1.0/

     4  */

     5 function runTest() {

     6   var xhr = new XMLHttpRequest();

     8   var events = [];

     9   function pushEvent(event) {

    10     var readyState, responseText, status, statusText;

    12     try {

    13       readyState = xhr.readyState;

    14     }

    15     catch (e) {

    16       readyState = "[exception]";

    17     }

    19     try {

    20       responseText = xhr.responseText;

    21     }

    22     catch (e) {

    23       responseText = "[exception]";

    24     }

    26     try {

    27       status = xhr.status;

    28     }

    29     catch (e) {

    30       status = "[exception]";

    31     }

    33     try {

    34       statusText = xhr.statusText;

    35     }

    36     catch (e) {

    37       statusText = "[exception]";

    38     }

    40     var str = event.type + "(" + readyState + ", '" + responseText + "', " +

    41               status + ", '" + statusText + "'";

    42     if ((("ProgressEvent" in this) && event instanceof ProgressEvent) ||

    43         (("WorkerProgressEvent" in this) && event instanceof WorkerProgressEvent)) {

    44       str += ", progressEvent";

    45     }

    46     str += ")";

    48     events.push(str);

    49   }

    51   xhr.onerror = function(event) {

    52     throw new Error("Error: " + xhr.statusText);

    53   }

    55   xhr.onload = function(event) {

    56     throw new Error("Shouldn't have gotten load event!");

    57   };

    59   var seenAbort;

    60   xhr.onabort = function(event) {

    61     if (seenAbort) {

    62       throw new Error("Already seen the abort event!");

    63     }

    64     seenAbort = true;

    66     pushEvent(event);

    67     postMessage(events);

    68   };

    70   xhr.onreadystatechange = function(event) {

    71     pushEvent(event);

    72     if (xhr.readyState == xhr.HEADERS_RECEIVED) {

    73       xhr.abort();

    74     }

    75   };

    77   xhr.open("GET", "testXHR.txt");

    78   xhr.overrideMimeType("text/plain");

    79   xhr.send(null);

    80 }

    82 function messageListener(event) {

    83   switch (event.data) {

    84     case "start":

    85       runTest();

    86       break;

    87     default:

    88       throw new Error("Bad message!");

    89   }

    90 }

    92 addEventListener("message", messageListener, false);

The Tor Browser / file revision