diff --git a/src/common/common-hash.js b/src/common/common-hash.js
index 2d94372a6..0eb4faa37 100644
--- a/src/common/common-hash.js
+++ b/src/common/common-hash.js
@@ -317,8 +317,7 @@ Version 4: Data URL when not a realtime link yet (new pad or "static" app)
                 if (parsed.password || opts.password) { hash += 'p/'; }
                 if (opts.embed) { hash += 'embed/'; }
                 if (opts.present) { hash += 'present/'; }
-                var versionHash = (typeof(opts.versionHash) !== "undefined") ? opts.versionHash : parsed.versionHash;
-
+                var versionHash = typeof(opts.versionHash) !== "undefined" ? opts.versionHash : parsed.versionHash;
                 if (versionHash) {
                     hash += 'hash=' + Crypto.b64RemoveSlashes(versionHash) + '/';
                 }
diff --git a/www/common/onlyoffice/history.js b/www/common/onlyoffice/history.js
index fa546f135..d0ba35a34 100644
--- a/www/common/onlyoffice/history.js
+++ b/www/common/onlyoffice/history.js
@@ -83,7 +83,6 @@ define([
         };
 
         var showVersion = function (initial, position) {
-            
             v = getVersion(position, initial);
             if (initial) {
                 v = Messages.oo_version_latest;
@@ -164,7 +163,6 @@ define([
                 }
                 
                 var nextId = hashes[id+1] ? hashes[id+1] : undefined;
-                
                 var toHash = nextId ? nextId.hash : config.onlyoffice.lastHash;
                 var fromHash = cp?.hash || 'NONE';
 
@@ -177,7 +175,6 @@ define([
                     resolve(); 
                 });
             });
-            
         };
 
         loadMoreOOHistory();
@@ -221,7 +218,6 @@ define([
                 $next.prop('disabled', 'disabled');
                 $fastNext.prop('disabled', 'disabled');
             }
-            
         };
 
         var loadingFalse = function () {
@@ -298,7 +294,6 @@ define([
                     goBack();                    
                 });
             }
-            
             goBack();
         };
 
@@ -440,7 +435,7 @@ define([
                 showVersion(false, position)
             });
             
-            // Go to next checkpoint
+            // Go to previous checkpoint
             $fastPrev.click(function () {
                 if (loading) { return; }
                 loading = true;
@@ -458,7 +453,6 @@ define([
                 position = 0;
                 loading = false;
             });
-
             onKeyDown = function (e) {
                 var p = function () { e.preventDefault(); };
                 if ([38, 39].indexOf(e.which) >= 0) { p(); return $next.click(); } // Right
diff --git a/www/common/onlyoffice/inner.js b/www/common/onlyoffice/inner.js
index 1db54a889..bbdfaa889 100644
--- a/www/common/onlyoffice/inner.js
+++ b/www/common/onlyoffice/inner.js
@@ -3214,7 +3214,6 @@ Uncaught TypeError: Cannot read property 'calculatedType' of null
                     if (obj && obj.hash && obj.time) {
                         hash = obj.hash;
                         time = obj.time;
-
                     } else {
                         var major = Object.keys(content.hashes).length;
                         var cpIndex = getLastCp().index || 0;