Handle blank prefix= in http.conf

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@112033 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/http.c

@@ -683,8 +683,8 @@ static struct ast_str *handle_uri(struct ast_tcptls_session_instance *ser, char
 		goto cleanup;
 	}
 
-	/* We want requests to start with the prefix and '/' */
-	if ((l = strlen(prefix)) && !strncasecmp(uri, prefix, l) && uri[l] == '/') {
+	/* We want requests to start with the (optional) prefix and '/' */
+	if (((l = strlen(prefix)) || !*prefix) && !strncasecmp(uri, prefix, l) && uri[l] == '/') {
 		uri += l + 1;
 		/* scan registered uris to see if we match one. */
 		AST_RWLIST_RDLOCK(&uris);