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.
UWCC r11.4 SP3
Browser setting; Displaying UWCC in Compatibility mode.
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.