tests: Don't set iframe.src in test_appendchild.js

The test file was taken from acid3, which does actually serve documents
for those locations.

For us, those documents never were available (as we're using `setHtml`
which uses a `data` URL internally), but the test does work just fine
without them. It was intended to test `appendChild` with different tags,
see the original commit (6c241f96ed626f600911cac77f357ba8eb131e0c) as
well as #2723 for details.

So far, them being there wasn't a problem, but with Qt 5.15.2 (or rather
the underlying Chromium 83), we get errors logged like this one:

    "Invalid relative frame source URL (xhtml.3) within data URL.", source:  (47)

So let's just not set them at all.

See #5752.

1 files changed, 7 insertions, 7 deletions

diff --git a/tests/unit/javascript/stylesheet/test_appendchild.js b/tests/unit/javascript/stylesheet/test_appendchild.js
index d1deadba6..aa1294cb3 100644
--- a/tests/unit/javascript/stylesheet/test_appendchild.js
+++ b/tests/unit/javascript/stylesheet/test_appendchild.js
@@ -9,37 +9,37 @@ var iframe, object;
 // svg iframe
 iframe = document.createElement('iframe');
 iframe.onload = function () { kungFuDeathGrip.title += '1' };
-iframe.src = "svg.xml";
+// iframe.src = "svg.xml";
 kungFuDeathGrip.appendChild(iframe);
 // object iframe
 object = document.createElement('object');
 object.onload = function () { kungFuDeathGrip.title += '2' };
-object.data = "svg.xml";
+// object.data = "svg.xml";
 kungFuDeathGrip.appendChild(object);
 // xml iframe
 iframe = document.createElement('iframe');
 iframe.onload = function () { kungFuDeathGrip.title += '3' };
-iframe.src = "empty.xml";
+// iframe.src = "empty.xml";
 kungFuDeathGrip.appendChild(iframe);
 // html iframe
 iframe = document.createElement('iframe');
 iframe.onload = function () { kungFuDeathGrip.title += '4' };
-iframe.src = "empty.html";
+// iframe.src = "empty.html";
 kungFuDeathGrip.appendChild(iframe);
 // html iframe
 iframe = document.createElement('iframe');
 iframe.onload = function () { kungFuDeathGrip.title += '5' };
-iframe.src = "xhtml.1";
+// iframe.src = "xhtml.1";
 kungFuDeathGrip.appendChild(iframe);
 // html iframe
 iframe = document.createElement('iframe');
 iframe.onload = function () { kungFuDeathGrip.title += '6' };
-iframe.src = "xhtml.2";
+// iframe.src = "xhtml.2";
 kungFuDeathGrip.appendChild(iframe);
 // html iframe
 iframe = document.createElement('iframe');
 iframe.onload = function () { kungFuDeathGrip.title += '7' };
-iframe.src = "xhtml.3";
+// iframe.src = "xhtml.3";
 kungFuDeathGrip.appendChild(iframe);
 // add the lot to the document