Error: Failed to load alerts: Response was NOT a valid JSON document.

Document ID : KB000044366
Last Modified Date : 14/02/2018
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Issue/Problem/Symptoms: 

UWCC Alerts widget and the Alerts section under a Monitoring view displays the following message “Error: Failed to load alerts: Response was NOT a valid JSON document”, which fails to render any alerts.

 

Environment:  

IE 8

UWCC r11.4 SP3

 

Cause: 

Browser setting; Displaying UWCC in Compatibility mode.

 

Resolution/Workaround:

1. Internet Explorer Menu bar, select Tools -> Compatibility View Settings

2. Review the section titled “Websites you’ve added to Compatibility View:”

3. Remove all entries referencing the UWCC website.

a. Select the entry

b. Select the Remove button

4. Once all UWCC entries have been removed, select the Close button.

 

5. Launch a new browser session to UWCC and the error message should not be present.