diff --git a/3rdParty/Expat/src/xmlparse.c b/3rdParty/Expat/src/xmlparse.c
index 94e31de..ad5add2 100755
--- a/src/xmlparse.c
+++ b/src/xmlparse.c
@@ -2808,8 +2808,10 @@ storeAtts(XML_Parser parser, const ENCODING *enc,
         ((XML_Char *)s)[-1] = 0;  /* clear flag */
         id = (ATTRIBUTE_ID *)lookup(&dtd->attributeIds, s, 0);
         b = id->prefix->binding;
-        if (!b)
-          return XML_ERROR_UNBOUND_PREFIX;
+        if (!b) {
+          //return XML_ERROR_UNBOUND_PREFIX;
+          continue;
+        }
 
         /* as we expand the name we also calculate its hash value */
         for (j = 0; j < b->uriLen; j++) {
@@ -2887,7 +2889,7 @@ storeAtts(XML_Parser parser, const ENCODING *enc,
     return XML_ERROR_NONE;
 
   /* expand the element type name */
-  if (elementType->prefix) {
+  if (elementType->prefix && elementType->prefix->binding) {
     binding = elementType->prefix->binding;
     if (!binding)
       return XML_ERROR_UNBOUND_PREFIX;
@@ -2983,10 +2985,10 @@ addBinding(XML_Parser parser, PREFIX *prefix, const ATTRIBUTE_ID *attId,
       && prefix->name[2] == XML_T(ASCII_l)) {
 
     /* Not allowed to bind xmlns */
-    if (prefix->name[3] == XML_T(ASCII_n)
+    /*if (prefix->name[3] == XML_T(ASCII_n)
         && prefix->name[4] == XML_T(ASCII_s)
         && prefix->name[5] == XML_T('\0'))
-      return XML_ERROR_RESERVED_PREFIX_XMLNS;
+      return XML_ERROR_RESERVED_PREFIX_XMLNS;*/
 
     if (prefix->name[3] == XML_T('\0'))
       mustBeXML = XML_TRUE;
@@ -3003,12 +3005,12 @@ addBinding(XML_Parser parser, PREFIX *prefix, const ATTRIBUTE_ID *attId,
   isXML = isXML && len == xmlLen;
   isXMLNS = isXMLNS && len == xmlnsLen;
 
-  if (mustBeXML != isXML)
+  /*if (mustBeXML != isXML)
     return mustBeXML ? XML_ERROR_RESERVED_PREFIX_XML
-                     : XML_ERROR_RESERVED_NAMESPACE_URI;
+                     : XML_ERROR_RESERVED_NAMESPACE_URI;*/
 
-  if (isXMLNS)
-    return XML_ERROR_RESERVED_NAMESPACE_URI;
+  /*if (isXMLNS)
+    return XML_ERROR_RESERVED_NAMESPACE_URI;*/
 
   if (namespaceSeparator)
     len++;