Gatling recorder encounters handshake error, but browser does not

I keep receiving an SSL handshake error, but my browser does not. I know the particular website I’m working with has been locked down to only accept TLS1.2. I’ve added every piece of config I can find to make Gatling use that, however I have not had much success - any ideas?

Impossible to say without having access to your website, and knowing which Gatling version you use.

I’m using Gatling version 2.2.3. The website is

A bug indeed:

Most https websites are fine though.