Fixed JS syntax for Google Chrome < 72

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.4.1] - 2019-05-14
+### Fixed
+- JavaScript syntax incompatibility with Google Chrome versions less than 72
+
 ## [0.4.0] - 2019-05-04
 ### Added
 - OpenVINO auto annotation: it is possible to upload a custom model and annotate images automatically.

cvat/apps/dashboard/static/dashboard/js/dashboard.js

@@ -447,7 +447,7 @@ class DashboardView {
             try {
                 LabelsInfo.deserialize(labels)
                 return true;
-            } catch {
+            } catch (error) {
                 return false;
             }
         }

cvat/apps/engine/static/engine/js/logger.js

@@ -71,7 +71,7 @@ class LoggerHandler {
 
     addContinuedEvent(event) {
         this._userActivityHandler.updateTimer();
-        event.onCloseCallback = this._closeCallback;
+        event.onCloseCallback = this._closeCallback.bind(this);
         return event;
     }
 
@@ -152,7 +152,9 @@ class LoggerHandler {
         this._userActivityHandler.updateTimer();
     }
 
-    _closeCallback = event => { this._pushEvent(event); };
+    _closeCallback(event) {
+        this._pushEvent(event);
+    }
 
     updateTimer() {
         this._userActivityHandler.updateTimer();