mshtml: Use proper compat mode for HTMLDOMAttribute.

dlls/mshtml/htmlattr.c

@@ -495,9 +495,8 @@ HTMLDOMAttribute *unsafe_impl_from_IHTMLDOMAttribute(IHTMLDOMAttribute *iface)
     return iface->lpVtbl == &HTMLDOMAttributeVtbl ? impl_from_IHTMLDOMAttribute(iface) : NULL;
 }
 
-HRESULT HTMLDOMAttribute_Create(const WCHAR *name, HTMLElement *elem, DISPID dispid, HTMLDOMAttribute **attr)
+HRESULT HTMLDOMAttribute_Create(const WCHAR *name, HTMLElement *elem, DISPID dispid, compat_mode_t compat_mode, HTMLDOMAttribute **attr)
 {
-    compat_mode_t compat_mode = elem ? dispex_compat_mode(&elem->node.event_target.dispex) : COMPAT_MODE_QUIRKS;
     HTMLAttributeCollection *col;
     HTMLDOMAttribute *ret;
     HRESULT hres;

dlls/mshtml/htmldoc.c

@@ -2856,7 +2856,7 @@ static HRESULT WINAPI HTMLDocument5_createAttribute(IHTMLDocument5 *iface, BSTR
 
     TRACE("(%p)->(%s %p)\n", This, debugstr_w(bstrattrName), ppattribute);
 
-    hres = HTMLDOMAttribute_Create(bstrattrName, NULL, 0, &attr);
+    hres = HTMLDOMAttribute_Create(bstrattrName, NULL, 0, dispex_compat_mode(&This->doc_node->node.event_target.dispex), &attr);
     if(FAILED(hres))
         return hres;
 

dlls/mshtml/htmlelem.c

@@ -7251,7 +7251,7 @@ static inline HRESULT get_domattr(HTMLAttributeCollection *This, DISPID id, LONG
             return E_UNEXPECTED;
         }
 
-        hres = HTMLDOMAttribute_Create(NULL, This->elem, id, attr);
+        hres = HTMLDOMAttribute_Create(NULL, This->elem, id, dispex_compat_mode(&This->elem->node.event_target.dispex), attr);
         if(FAILED(hres))
             return hres;
     }

dlls/mshtml/mshtml_private.h

@@ -1090,7 +1090,7 @@ typedef struct {
 
 HTMLDOMAttribute *unsafe_impl_from_IHTMLDOMAttribute(IHTMLDOMAttribute*) DECLSPEC_HIDDEN;
 
-HRESULT HTMLDOMAttribute_Create(const WCHAR*,HTMLElement*,DISPID,HTMLDOMAttribute**) DECLSPEC_HIDDEN;
+HRESULT HTMLDOMAttribute_Create(const WCHAR*,HTMLElement*,DISPID,compat_mode_t,HTMLDOMAttribute**) DECLSPEC_HIDDEN;
 
 HRESULT HTMLElement_Create(HTMLDocumentNode*,nsIDOMNode*,BOOL,HTMLElement**) DECLSPEC_HIDDEN;
 HRESULT HTMLCommentElement_Create(HTMLDocumentNode*,nsIDOMNode*,HTMLElement**) DECLSPEC_HIDDEN;