+--- server/core.c 2017/08/16 16:50:29 1805223
++++ server/core.c 2017/09/08 13:13:11 1807754
+@@ -2262,6 +2262,12 @@
+ /* method has not been registered yet, but resource restriction
+ * is always checked before method handling, so register it.
+ */
++ if (cmd->pool == cmd->temp_pool) {
++ /* In .htaccess, we can't globally register new methods. */
++ return apr_psprintf(cmd->pool, "Could not register method '%s' "
++ "for %s from .htaccess configuration",
++ method, cmd->cmd->name);
++ }
+ methnum = ap_method_register(cmd->pool,
+ apr_pstrdup(cmd->pool, method));
+ }