You couldn't see any HTTPS traffic on Proxyman app
You get SSL Error from HTTPS Requests and Responses
You get SSL Handshake Failed
There are many reasons why we encounter the SSL Error, please double-check the following steps:
Let try to intecept https://google.com from Safari app:
If success, and you're able to see https://google.com HTTPS Response => You setup the Proxyman Certificate correctly and move the step 2.2
If not, please re-install the Proxyman Certificate or try to reset the app from Help menu -> Advanced -> Reset app & Certificate
You're still unable to see HTTPS Response on your app, it seems that your app is protected by SSL-Pinning, which prevent MitM apps to see the content.
Please temporarily disable SSL-Pinning and try again.
Read more about SSL-Pining: https://www.raywenderlich.com/1484288-preventing-man-in-the-middle-attacks-in-ios-with-ssl-pinning
2.3 Install Proxyman CA on Firefox
If you encounters the SSL Error on Firefox, it means that we need to install Proxyman CA into Firefox's Trust Store. Please read Firefox installation page.