Index: uri.c
@@ -1470,6 +1470,10 @@
     /*
      * 1) The URI reference is parsed into the potential four components and
      *    fragment identifier, as described in Section 4.3.
+     *
+     *    NOTE that a completely empty URI is treated by modern browsers
+     *    as a reference to "." rather than as a synonym for the current
+     *    URI.  Should we do that here?
      */
     ref = xmlCreateURI();
     if (ref == NULL)
@@ -1489,29 +1493,45 @@
     /*
      * 2) If the path component is empty and the scheme, authority, and
      *    query components are undefined, then it is a reference to the
-     *    current document.  However, since we need to inherit these
-     *    values from the base, we keep on going.
+     *    current document and we are done.  Otherwise, the reference URI's
+     *    query and fragment components are defined as found (or not found)
+     *    within the URI reference and not inherited from the base URI.
      *
-     *  NOTE: this is a divergence from the RFC which says:
-     *     current document and we are done.  Otherwise, the reference URI's
-     *     query and fragment components are defined as found (or not found)
-     *     within the URI reference and not inherited from the base URI.
+     *    NOTE that in modern browsers, the parsing differs from the above
+     *    in the following aspect:  the query component is allowed to be
+     *    defined while still treating this as a reference to the current
+     *    document.
      */
     res = xmlCreateURI();
     if (res == NULL)
 	goto done;
-#if 0
     if ((ref->scheme == NULL) && (ref->path == NULL) &&
-	((ref->authority == NULL) && (ref->server == NULL)) &&
-	(ref->query == NULL)) {
-	if (ref->fragment == NULL)
-	    goto done;
-	res->fragment = xmlMemStrdup(ref->fragment);
-	val = xmlSaveUri(res);
-	goto done;
+	((ref->authority == NULL) && (ref->server == NULL))) {
+	if (bas->scheme != NULL)
+	    res->scheme = xmlMemStrdup(bas->scheme);
+	if (bas->authority != NULL)
+	    res->authority = xmlMemStrdup(bas->authority);
+	else if (bas->server != NULL) {
+	    res->server = xmlMemStrdup(bas->server);
+	    if (bas->user != NULL)
+		res->user = xmlMemStrdup(bas->user);
+	    res->port = bas->port;		
+	}
+	if (bas->path != NULL)
+	    res->path = xmlMemStrdup(bas->path);
+	if (ref->query != NULL)
+	    res->query = xmlMemStrdup(ref->query);
+	else if (bas->query != NULL)
+	    res->query = xmlMemStrdup(bas->query);
+	if (ref->fragment != NULL)
+	    res->fragment = xmlMemStrdup(ref->fragment);
+	goto step_7;
     }
-#endif
  
+    if (ref->query != NULL)
+	res->query = xmlMemStrdup(ref->query);
+    if (ref->fragment != NULL)
+	res->fragment = xmlMemStrdup(ref->fragment);
 
     /*
      * 3) If the scheme component is defined, indicating that the reference
@@ -1544,10 +1564,6 @@
 	}
 	if (ref->path != NULL)
 	    res->path = xmlMemStrdup(ref->path);
-	if (ref->query != NULL)
-	    res->query = xmlMemStrdup(ref->query);
-	if (ref->fragment != NULL)
-	    res->fragment = xmlMemStrdup(ref->fragment);
 	goto step_7;
     }
     if (bas->authority != NULL)
@@ -1562,32 +1578,9 @@
     /*
      * 5) If the path component begins with a slash character ("/"), then
      *    the reference is an absolute-path and we skip to step 7.
-     *
-     *    If it is not defined, inherit the whole path from the base.
-     *    The query and the fragment are inherited too, unless specified
-     *    in the reference.
-     */
-    if (ref->path == NULL) {
-	res->path = xmlMemStrdup(bas->path);
-	if (ref->query == NULL && ref->fragment == NULL) {
-	    if (bas->query != NULL)
-		res->query = xmlMemStrdup(bas->query);
-	    if (bas->fragment != NULL)
-		res->fragment = xmlMemStrdup(bas->fragment);
-	} else {
-	    if (ref->query != NULL)
-		res->query = xmlMemStrdup(ref->query);
-	    if (ref->fragment != NULL)
-		res->fragment = xmlMemStrdup(ref->fragment);
-	}
-	goto step_7;
-    }
-    if (ref->path[0] == '/') {
+     */
+    if ((ref->path != NULL) && (ref->path[0] == '/')) {
 	res->path = xmlMemStrdup(ref->path);
-	if (ref->query != NULL)
-	    res->query = xmlMemStrdup(ref->query);
-	if (ref->fragment != NULL)
-	    res->fragment = xmlMemStrdup(ref->fragment);
 	goto step_7;
     }
 
@@ -1658,11 +1651,6 @@
      * Steps c) to h) are really path normalization steps
      */
     xmlNormalizeURIPath(res->path);
-
-    if (ref->query != NULL)
-	res->query = xmlMemStrdup(ref->query);
-    if (ref->fragment != NULL)
-	res->fragment = xmlMemStrdup(ref->fragment);
 
 step_7: