Error in mybb 1.8.13

[.m.]

^ same code is used in MyBB 1.8.22
headerinclude template might need additional code.
code added before var cookieDomain = "{$mybb->settings['cookiedomain']}";

var templates = {
modal: '{$jsTemplates['modal']}',
modal_button: '{$jsTemplates['modal_button']}'
};