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Users of home pages who have enabled auto-refresh may occasionally experience a blank page being rendered when the ServiceNow server instance is under heavy load.
If the users see a white screen or cancelled by other transaction message on screen: Setup homepage refresh to 5 minutes. Monitor the session while the homepage is refreshing, tail the session using your session id
You will notice two home.do transactions back to back. Use Chrome://net-internals/#events tool and monitor event for home.do for your instance.
You will two events for home.do at client side. One home.do is cancelled with net_error = -3 (ERR_ABORTED) Same thing is monitored from Chrome devtool: In network tab you see two transactions with one cancelled. This occurs on any browser.
Disabling page prefetching in Chrome: In Chrome's advanced settings uncheck the Use a prediction service to load pages more quickly checkbox. Disabling page prefetching in IE: https://msdn.microsoft.com/en-us/library/ms940847(v=winembedded.5).aspx Disabling page prefetching in FireFox: https://support.mozilla.org/t5/Protect-your-privacy/How-to-stop-Firefox-from-making-automatic-connections/ta-p/1748#w_prefetching Disabling page prefetching in Safari: using the following command defaults write com.apple.safari WebKitDNSPrefetchingEnabled -boolean false
PRB921157
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