Problem
For versions of SDx before Update 46, when accessing an InsightView, the contents of the widget are not displayed. The error Failed to execute the API request: 'No route found' is returned.
This problem does not occur on Update 46 or later.
Common cause
There is no / separating the Web API and the widget URLs.
Solution
Add a / either at the end of the Web API URL or at the start of the widget URL.