Github user apiri commented on the issue:
https://github.com/apache/nifi/pull/398
Hey @pvillard31,
I did a review of this and it seems to work mostly well using Squid with
the following config:
```
auth_param basic program
/usr/local/Cellar/squid/3.5.19/libexec/basic_ncsa_auth
/usr/local/etc/squid.passwords
auth_param basic realm proxy
acl authenticated proxy_auth REQUIRED
http_access allow authenticated
http_port 3128
```
and created a proxy user via:
```
htpasswd -c /usr/local/etc/squid.passwords testuser
```
I read through some of your commentary on the ticket and was not able to
recreate the conditions you were seeing for HTTPS sites. I tried a few, and
all seemed to work as anticipated. I did, however, see the "Too many follow up
requests" when using wrong credentials (invalid username/password combination).
In terms of handling this, I saw the folks on square/okhttp#2464
recommended using the `Response.priorResponse()` to track such issues in the
Authenticator.
Let me know your thoughts on how to address that, but overall functions as
anticipated and code looks fine.
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