check that content type exists before setting it

src/pages/api/services/proxy.js

@@ -7,6 +7,7 @@ import npmProxyHandler from "utils/proxies/npm";
 const serviceProxyHandlers = {
   // uses query param auth
   emby: genericProxyHandler,
+  jellyfin: genericProxyHandler,
   pihole: genericProxyHandler,
   radarr: genericProxyHandler,
   sonarr: genericProxyHandler,

src/utils/api-helpers.js

@@ -1,5 +1,6 @@
 const formats = {
   emby: `{url}/emby/{endpoint}?api_key={key}`,
+  jellyfin: `{url}/emby/{endpoint}?api_key={key}`,
   pihole: `{url}/admin/{endpoint}`,
   radarr: `{url}/api/v3/{endpoint}?apikey={key}`,
   sonarr: `{url}/api/v3/{endpoint}?apikey={key}`,

src/utils/proxies/credentialed.js

@@ -19,7 +19,7 @@ export default async function credentialedProxyHandler(req, res) {
         },
       });
 
-      res.setHeader("Content-Type", contentType);
+      if (contentType) res.setHeader("Content-Type", contentType);
       return res.status(status).send(data);
     }
   }

src/utils/proxies/generic.js

@@ -12,7 +12,7 @@ export default async function genericProxyHandler(req, res) {
       const url = new URL(formatApiCall(widget.type, { endpoint, ...widget }));
       const [status, contentType, data] = await httpProxy(url);
 
-      res.setHeader("Content-Type", contentType);
+      if (contentType) res.setHeader("Content-Type", contentType);
       return res.status(status).send(data);
     }
   }