diff --git a/lib/csp.js b/lib/csp.ts
similarity index 100%
rename from lib/csp.js
rename to lib/csp.ts
diff --git a/lib/response.ts b/lib/response.ts
index bce5a31ba..49dde9abc 100644
--- a/lib/response.ts
+++ b/lib/response.ts
@@ -1,3 +1,4 @@
+'use strict'
 import { config } from './config'
 import { Note, User } from './models'
 
diff --git a/lib/web/note/actions.ts b/lib/web/note/actions.ts
index 2d6946aa8..391d52241 100644
--- a/lib/web/note/actions.ts
+++ b/lib/web/note/actions.ts
@@ -52,12 +52,10 @@ export function getRevision (req: any, res: Response, note: Note): void {
           logger.error(err)
           errors.errorInternalError(res)
 
-          return
-        }
-        if (!content) {
+        return
+        }if (!content) {
           errors.errorNotFound(res)
-          return
-        }
+        return}
         res.set({
           'Access-Control-Allow-Origin': '*', // allow CORS as API
           'Access-Control-Allow-Headers': 'Range',
@@ -68,15 +66,13 @@ export function getRevision (req: any, res: Response, note: Note): void {
         res.send(content)
       })
     } else {
-      errors.errorNotFound(res)
-      return
+      errors.errorNotFound(res)return
     }
   } else {
     Revision.getNoteRevisions(note, function (err, data) {
       if (err) {
         logger.error(err)
-        errors.errorInternalError(res)
-        return
+        errors.errorInternalError(res)return
       }
       const out = {
         revision: data