PME Fails to show real-time data through the slideshow in the table gadget dashboards

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Issue
Fails to show real-time data through the slideshow in the table gadget dashboards reported for PME9/PME2020

Description of the error:
Source: Fetch Realtime Data
Detail: The application client encountered an error: SyntaxError: Unexpected token <in JSON at position 4>

Environment
PME9
PME2020 CU1

Steps to reproduce the issue

Create a dashboard that included a table gadget
Create a slideshow that includes the dashboard in step 1
Copy the link to share the slideshow
Close the web App in the Web client machine (This step is important because if you are log on in another tab on that machine, you can see the real-time data correctly)
Open the link to the slideshow

Cause

The Table Gadget needs to have the customer Authenticate in PME in a separate tab since it is real-time data.
Real-time data request needs authentication. Slideshow is un-authenticated

Proposed Solution

The Workaround to have a secondary tab open like you mentioned that is logged into PME. This Authenticates the session and allows the Table Gadget to display the Real Time data.
There are no plans to change this behavior at this point, and if the customer wanted to push for this change then it would have to be added as a feature request through the Country Offer Manager.
Bug # 99802 has been updated and requested that the Documentation be updated to reflect that the Table Gadget only works in the Slideshow if the PME user is also authenticated through a separate tab.