I have a problem with Google Chrome. I've just created ASP.NET Core project (Visual Studio 2019) and when I launched it I noticed this problem:

ERR_SSL_VERSION_OR_CIPHER_MISMATCH The site localhost uses unsupported protocol

I haven't changed anything in my code

CodePudding user response：

You may try cleaning up old self-signed certificate and re-issue new one

dotnet dev-certs https –clean
dotnet dev-certs https –trust

Also to bypass this, you may enable insecure localhost trust in chrome, not recommended though but would do the job for you

chrome://flags/#allow-insecure-localhost