I have an out-of-the-box instance of ArcGIS Web AppBuilder developer edition - the startup.bat file is unmodified and includes the lines:
REM open the url in browser
This is causing a problem when I try to access ArcGIS Server REST endpoints which are not served via https.
For example, when trying to add a sample layer via the Local Layer Widget I get an error message about insecure content:
I'm working in a corporate environment and don't have the option of serving my local layers via HTTPS, so I'd like to know whether it's possible to force Web AppBuilder to run on HTTP.