When using basic auth credentials in URL the query gets cut short

[OkkeKlein]

Describe the bug
After adding credentials to the Search Engine Request Handler input, the direct Solr query returns a 404 as the URL is cut short. /serp1?q=term&fq=bs_status: does not contain the value to filter on. Nor do any of the other filters show in the request..

The request works fine without credentials.

To Reproduce
Steps to reproduce the behavior:

1. Go to tune relevance
2. Add credentials
3. Click "Rerun my searches"

[epugh]

Once #788 is done, this will be an easy fix....

[epugh]

Need to push these changes live ;-). version 7.10

[epugh]

doing some testing... and so interestingly the http://reader:[email protected] approach does NOT work with the proxy... I think becuase that url pattern gets cut out.. Moving to using the explicit basic auth field is goign to fix a couple of issues I suspect ;-)

[epugh]

okay, so, I fixed this proxy thing in #1015 by actually digging it out of the proxied url, and using a proper basic auth header!