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Technology

Server Name Indication

SNI is an extension to TLS and enables HTTPS clients to send the host name of the server it wants to connect to at the start of the handshake request. This is an important feature, as the host name information is sent inside the HTTP header and the header is Read more…

By Tobias Hofmann, 5 yearsDecember 21, 2020 ago

Technology

Response for preflight does not have HTTP ok status

Issuing an AJAX request is more complex than you might think. Issue When you issue an AJAX request to a server in another domain (CORS), you may get the following error message: Response for preflight does not have HTTP ok status. Problem The server is configured to allow CORS. The Read more…

By Tobias Hofmann, 7 yearsNovember 26, 2018 ago