move purify to server side.

webapp/src/routes/[id].json.js

@@ -1,9 +1,17 @@
 import fetch from 'isomorphic-fetch';
 
+import { purify, purifyArray } from './_purify';
+
 const API_URL = process.env.API_URL || 'http://localhost:33842';
 
 export async function get(req, res) {
 	const response = await fetch(`${API_URL}/api/${req.params.id}`);
 	res.writeHead(response.status, { 'Content-Type': 'application/json' });
-	res.end(await response.text());
+	if (!response.ok) {
+		return res.end(await response.text());
+	}
+	const data = await response.json();
+	data.story = purify(data.story);
+	data.related = purifyArray(data.related);
+	res.end(JSON.stringify(data));
 }