LayoutTests/http/tests/xmlhttprequest/supported-xml-content-types.html

<script>
if (window.testRunner)
    testRunner.dumpAsText();

var request = new XMLHttpRequest();

function getXMLOfType(type)
{
    var escapedType = escape(type).replace(/\+/g, "^^PLUS^^"); // Perl CGI module seems replace + with a space
    request.open("GET", "supported-xml-content-types.cgi?type=" + escapedType, false);
    request.send(null);
    return request.responseXML;
}

function testXMLType(type, expected)
{
    var xmlResult = getXMLOfType(type);
    var statusText = "FAIL (response type: " + request.getResponseHeader("Content-type") + ")";

    if (xmlResult) {
        statusText = "FAIL (got document -- response type: " + request.getResponseHeader("Content-type") + ")";
        var typeElement = xmlResult.firstChild;
        if (expected && typeElement) {
            if (typeElement.textContent == type)
                statusText = "PASS";
            else
                statusText = "FAIL (incorrect content: " + typeElement.textContent + " expected: " + type + ")";
        }
    } else if (!expected)
        statusText = "PASS";
    
    document.write("<p>" + statusText + " -- testing: " + type + " -- responseXML: " + xmlResult + "</p>");
}

// valid types
testXMLType("text/xml", true);
testXMLType("image/svg+xml", true);
testXMLType("application/soap+xml", true);
testXMLType("foo/bar+xml", true);
testXMLType("123/BAR+xml", true);

// They may be strange, but these should all be valid:
testXMLType("foo_bar/baz+xml", true);
testXMLType("foo-bar/baz+xml", true);
testXMLType("foo+bar/baz+xml", true);
testXMLType("foo~bar/baz+xml", true);
testXMLType("foo!bar/baz+xml", true);
testXMLType("foo$bar/baz+xml", true);
testXMLType("foo^bar/baz+xml", true);
testXMLType("foo{bar/baz+xml", true);
testXMLType("foo}bar/baz+xml", true);
testXMLType("foo|bar/baz+xml", true);
testXMLType("foo%bar/baz+xml", true);
testXMLType("foo'bar/baz+xml", true);
testXMLType("foo`bar/baz+xml", true);
testXMLType("foo#bar/baz+xml", true);
testXMLType("foo&bar/baz+xml", true);
testXMLType("foo*bar/baz+xml", true);

// non-xml types
testXMLType("text/html", false);
testXMLType("image/png", false);


// invalid types
testXMLType("invalid", false);

// FIXME: our code intentionally skips spaces, that seems wrong to me.
// https://bugs.webkit.org/show_bug.cgi?id=8644
testXMLType("foo bar/baz+xml", false);

testXMLType("foo[bar/baz+xml", false);
testXMLType("foo]bar/baz+xml", false);
testXMLType("foo(bar/baz+xml", false);
testXMLType("foo)bar/baz+xml", false);
testXMLType("foo<bar/baz+xml", false);
testXMLType("foo>bar/baz+xml", false);
testXMLType("foo@bar/baz+xml", false);
testXMLType("foo,bar/baz+xml", false);
testXMLType("foo;bar/baz+xml", false);
testXMLType("foo:bar/baz+xml", false);
testXMLType("foo\\bar/baz+xml", false);
testXMLType('foo"bar/baz+xml', false);
testXMLType("foo/bar/baz+xml", false);
testXMLType("foo?bar/baz+xml", false);
testXMLType("foo=bar/baz+xml", false);

</script>