Adjust karma.conf.js
diff --git a/karma.conf.js b/karma.conf.js
index 3292de4..cc98cd8 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -2,7 +2,10 @@
 // https://karma-runner.github.io/0.13/config/configuration-file.html
 
 module.exports = function (config) {
-  config.set({
+  config.set({    
+    browserDisconnectTolerance: 3,
+    browserNoActivityTimeout: 30000,
+	browserDisconnectTimeout: 10000,    
     basePath: '',
     frameworks: ['jasmine', '@angular/cli'],
     plugins: [