Infinite loading for dataset embed

[allyoucanmap]

Describe the bug

Dataset embed page shows always an infinite loading spinner

Expected Behavior

Dataset embed page should show the map viewer

Steps to Reproduce the Problem

1. Open the embed page of a dataset (eg. maps/692/embed)

Specifications

• GeoNode client version:
• Browser:
• Installation type (vanilla, geonode-project):
• Additional details:

[giohappy]

To be backproted