test_import_errorMessage2.html

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<!DOCTYPE html>

<meta charset=utf-8>

<title>Test to get the filename of the requested module after it has been evaluated</title>

<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>

<script>

  SimpleTest.waitForExplicitFinish();

  let count = 0;

  window.onerror = function (event, src, lineno, colno, error) {

    info("window.onerror: message: " + error.message);

    info("window.onerror: src: " + src);

    ok(error instanceof SyntaxError, "Should be a SyntaxError.");

    if (src.match("module_e.mjs")) {

      ok(error.message.match("contains ambiguous star export"));

    } else {

      ok(false, "unknown src " + src);

    count++;

};

  function testLoaded() {

    ok(count === 1, "Should have 1 SynaxError thrown.");

    SimpleTest.finish();

</script>

<!--module_c.mjs will be evaluated here-->

<script type="module" src="module_d.mjs"></script>

<!--module_c.mjs will be linked again here-->

<script type="module" src="module_e.mjs"></script>

<body onload='testLoaded()'></body>