Jacek Caban : mshtml: Fixed getElementsByTagName for comment elements.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: d3ed68aff928bfad16280cb8adbc4ae8a21a4ff2
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=d3ed68aff928bfad16280cb8adbc4ae8a21a4ff2

Author: Jacek Caban <jacek at codeweavers.com>
Date:   Thu Sep 14 14:15:13 2017 +0200

mshtml: Fixed getElementsByTagName for comment elements.

Signed-off-by: Jacek Caban <jacek at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/mshtml/htmlelem.c  | 5 +++++
 dlls/mshtml/tests/dom.c | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/dlls/mshtml/htmlelem.c b/dlls/mshtml/htmlelem.c
index 782a632..a87bdf0 100644
--- a/dlls/mshtml/htmlelem.c
+++ b/dlls/mshtml/htmlelem.c
@@ -3101,6 +3101,11 @@ static HRESULT WINAPI HTMLElement2_getElementsByTagName(IHTMLElement2 *iface, BS
 
     TRACE("(%p)->(%s %p)\n", This, debugstr_w(v), pelColl);
 
+    if(!This->nselem) {
+        *pelColl = create_collection_from_htmlcol(This->node.doc, NULL);
+        return S_OK;
+    }
+
     nsAString_InitDepend(&tag_str, v);
     nsres = nsIDOMHTMLElement_GetElementsByTagName(This->nselem, &tag_str, &nscol);
     nsAString_Finish(&tag_str);
diff --git a/dlls/mshtml/tests/dom.c b/dlls/mshtml/tests/dom.c
index aca64c1..d7cfedd 100644
--- a/dlls/mshtml/tests/dom.c
+++ b/dlls/mshtml/tests/dom.c
@@ -9468,6 +9468,8 @@ static void test_create_elems(IHTMLDocument2 *doc)
             test_comment_text((IUnknown*)node2, "<!--testing-->");
             IHTMLDOMNode_Release(node2);
 
+            test_elem_getelembytag((IUnknown*)comment, ET_COMMENT, 0, NULL);
+
             IHTMLDOMNode_Release(comment);
         }