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The client failed to negotiate an SSL connection to xxx.xxx:443: Received fatal alert: unknown_ca

John | Last updated: Mar 13, 2018 03:59AM UTC

I able to see all the traffic but I still this alert almost per request sent

Burp User | Last updated: Mar 13, 2018 04:02AM UTC

this seen in IOS

Liam, PortSwigger Agent | Last updated: Mar 13, 2018 08:49AM UTC