test_bug325891.html

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<!DOCTYPE html>

<meta charset="utf-8">

<title>Terminated XSLT transforms should unblock document loads</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<div id="log"></div>

<script>

window.resultDocument = null;

for (const outputMethod of ["html", "xml"]) {

  promise_test(async t => {

    const frame = document.createElement("iframe");

    const xml = `<?xml version="1.0"?>

      <?xml-stylesheet type="text/xml" href="#sheet"?>

      <doc>

        <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0" id="sheet">

          <xsl:output method="${outputMethod}"/>

          <xsl:template match="/">

            <html xmlns="http://www.w3.org/1999/xhtml"><body>

              <xsl:element name="script" namespace="http://www.w3.org/1999/xhtml">

                parent.resultDocument = document;

              </xsl:element>

              <xsl:message terminate="yes">stop</xsl:message>

            </body></html>

          </xsl:template>

        </xsl:stylesheet>

      </doc>`;

    const url = URL.createObjectURL(new Blob([xml], { type: "application/xml" }));

    t.add_cleanup(() => {

      frame.remove();

      URL.revokeObjectURL(url);

      window.resultDocument = null;

});

    const loaded = new Promise(resolve => {

      frame.addEventListener("load", resolve, { once: true });

});

    frame.src = url;

    document.body.appendChild(frame);

    await loaded;

    assert_not_equals(window.resultDocument, null, "The partial result document was retained");

    assert_not_equals(frame.contentDocument, window.resultDocument, "The error document replaced the partial result");

    assert_not_equals(window.resultDocument.readyState, "loading", "The partial result document finished parsing");

    assert_equals(frame.contentDocument.documentElement.localName, "parsererror", "The transform failed");

    assert_equals(frame.contentDocument.readyState, "complete", "The error document finished loading");

  }, `A terminated ${outputMethod} transform should load its error document while the partial result is retained`);

</script>