fix: prevent errors from being cached (#2160)

api/index.js

@@ -89,6 +89,7 @@ export default async (req, res) => {
       }),
     );
   } catch (err) {
+    res.setHeader("Cache-Control", `no-store`); // Don't cache error responses.
     return res.send(renderError(err.message, err.secondaryMessage));
   }
 };

api/pin.js

@@ -75,6 +75,7 @@ export default async (req, res) => {
       }),
     );
   } catch (err) {
+    res.setHeader("Cache-Control", `no-store`); // Don't cache error responses.
     return res.send(renderError(err.message, err.secondaryMessage));
   }
 };

api/top-langs.js

@@ -76,6 +76,7 @@ export default async (req, res) => {
       }),
     );
   } catch (err) {
+    res.setHeader("Cache-Control", `no-store`); // Don't cache error responses.
     return res.send(renderError(err.message, err.secondaryMessage));
   }
 };

api/wakatime.js

@@ -78,6 +78,7 @@ export default async (req, res) => {
       }),
     );
   } catch (err) {
+    res.setHeader("Cache-Control", `no-store`); // Don't cache error responses.
     return res.send(renderError(err.message, err.secondaryMessage));
   }
 };