This happens on RHEL supported kernel as well.
We've tried Chrome,Firefox, Safari and IE.
After installing, and trying to open the module, it does show the setup page for Inputs, and etc. Then it promptly redirects to a welcome page. This is where we see the blank page with the spinner. (below)
Is there something manually we could do with config file to make it think like it's been configured?
According to document it cant:
Operating systems and browsers
Splunk DB Connect runs on the following operating systems. For details, see supported operating systems of Splunk Enterprise.
Linux, kernel version 2.6 and later
Linux, kernel version 3.x and later
Windows Server 2008R2, 2012R2
You can use the following browsers to use Splunk DB Connect on your Splunk platform:
Apple Safari (latest)
Google Chrome (latest)
Microsoft Edge (latest)
Microsoft Internet Explorer 11
Mozilla Firefox (latest)