# Proxy authentication in transparent mode

**URL:** https://discourse.mitmproxy.org/t/proxy-authentication-in-transparent-mode/733
**Category:** help
**Created:** [November 27, 2017, 3:44pm UTC](https://discourse.mitmproxy.org/t/proxy-authentication-in-transparent-mode/733 "2017-11-27T15:44:27Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Gigiarum](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mitmproxy.org/gigiarum/32/278_2.png) [@Gigiarum](https://discourse.mitmproxy.org/u/Gigiarum)
#### Post date: [November 27, 2017, 3:44pm UTC](https://discourse.mitmproxy.org/t/proxy-authentication-in-transparent-mode/733/1 "2017-11-27T15:44:27Z")

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Hello,  
I read [here](http://docs.mitmproxy.org/en/stable/features/proxyauth.html) that mitmproxy proxy authentication doesn’t work in transparent mode, what’s the matter?  
I try to set up it but browsers don’t prompt user for credentials and show the page with error 407 “normally”.

Thanks.

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### Author: ![mhils](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mitmproxy.org/mhils/32/7_2.png) [@mhils](https://discourse.mitmproxy.org/u/mhils)
#### Post date: [December 4, 2017, 10:26am UTC](https://discourse.mitmproxy.org/t/proxy-authentication-in-transparent-mode/733/2 "2017-12-04T10:26:20Z")

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The problem here is that browsers won’t expect or honor a “Proxy Authentication required” message when they expect to have a direct connection to the destination. For reverse proxies we do support basic authentication, but for transparent proxies that’d mean a new authentication dialogue for every single domain.