fix: buildReqObject headers for socket.io calls

src/api/helpers.js

@@ -20,7 +20,7 @@ exports.setDefaultPostData = function (reqOrSocket, data) {
 // creates a slimmed down version of the request object
 exports.buildReqObject = (req, payload) => {
 	req = req || {};
-	const headers = req.headers || {};
+	const headers = req.headers || (req.client && req.client.request && req.client.request.headers) || {};
 	const encrypted = req.connection ? !!req.connection.encrypted : false;
 	let { host } = headers;
 	const referer = headers.referer || '';

src/socket.io/categories/search.js

@@ -8,7 +8,7 @@ const privileges = require('../../privileges');
 const controllersHelpers = require('../../controllers/helpers');
 
 module.exports = function (SocketCategories) {
-	// used by categorySeach module
+	// used by categorySearch module
 	SocketCategories.categorySearch = async function (socket, data) {
 		let cids = [];
 		let matchedCids = [];