You may notice at times where the website you are testing behaves different on an automated test vs a manual test. For example, a video player will appear on manual session, but does not on automated session.
Sauce routes traffic from some WebDriver browsers through the Selenium HTTP proxy server so that HTTPS connections with self-signed certificates work everywhere. You can configure Sauce to avoid using the proxy server and have browsers communicate directly with your servers on your automated tests by adding the desired capability "avoidProxy" set to True. By default, all manual session tests on Sauce Labs have the desired capability "avoidProxy" set to True.
You can view all the desired capabilities being set on Sauce Labs tests by viewing the Base config section on the Metadata tab of a Sauce Labs job. This is a very valuable tool to compare differences in desired capabilities being sent.