I am monitoring my network calls using Fiddler. When I tried opening google chrome, four "Tunnel to www.google.com:443" calls triggered. Please, I want to know, why there is more than one network call for http connect. Also, is it required that we have a http connect tunnel to :443 request for every action I perform on a particular application over the network.
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When HTTPS traffic is sent through a proxy like Fiddler, the client sends a CONNECT
request to the proxy to tell it where to establish a connection (because of the encryption, a proxy wouldn't be able to tell otherwise).
As to why there are four connections instead of one-- All web browsers open multiple simultaneous HTTP(S) connections for performance reasons.

EricLaw
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