In the Mendix Cloud (if you are running there), you need to enable access to the path /link/. You can do this in your environment page (production or acceptance), on the Network tab in Path Based Access Restrictions, screenshot below:
Thank you. Your inputs helped to identify the cause and resolve it.
Hi Rukmini, great to see that Mike's reply helped you solve the problem.
Please mark his reply as Accepted Answer so that other people can see there's a solution to your questions. This helps everyone in the community.
Thank you!