triggerLoads.sjs - mozsearch

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function handleRequest(aRequest, aResponse) {

  aResponse.setStatusLine(aRequest.httpVersion, 200);

  aResponse.setHeader("Content-Type", "text/javascript", false);

  aResponse.setHeader("Access-Control-Allow-Origin", "*");

  let params = new URLSearchParams(aRequest.queryString);

  let type = params.get("type");

  let url = params.get("url");

  switch (type) {

    case "XHR":

      aResponse.write(`

        let xhr = new XMLHttpRequest();

        xhr.open("GET", "${url}");

        xhr.send();

`);

      break;

    case "Fetch":

      aResponse.write(`

        fetch("${url}");

`);

      break;

    case "Image":

      aResponse.write(`

        let img = document.createElement("img");

        img.src = "${url}";

        document.body.appendChild(img);

`);

      break;

    case "CSS":

      aResponse.write(`

        let link = document.createElement("link");

        link.rel = "stylesheet";

        link.href = "${url}";

        document.head.appendChild(link);

`);

      break;

    case "Video":

      aResponse.write(`

        let video = document.createElement("video");

        video.src = "${url}";

        document.body.appendChild(video);

`);

      break;

    case "Audio":

      aResponse.write(`

        let audio = document.createElement("audio");

        audio.src = "${url}";

        document.body.appendChild(audio);

`);

      break;

    case "Iframe":

      aResponse.write(`

        let iframe = document.createElement("iframe");

        iframe.src = "${url}";

        document.body.appendChild(iframe);

`);

      break;

    case "Script":

      aResponse.write(`

        let script = document.createElement("script");

        script.src = "${url}";

        document.body.appendChild(script);

`);

      break;

    case "WebSocket":

      aResponse.write(`

        let ws = new WebSocket(

          "ws://mochi.test:8888/browser/toolkit/components/antitracking/test/browser/file_ws_handshake_delay",

          ["test"]

);

`);

      break;

    default:

      throw new Error("Unsupported load type: " + aRequest.queryString);