i got a message 408 rquest timeout 

408 Request Timeout
It means that server waited a request from client but he did not repond at time. That ‘s why this kind of message sent by server to client browser.
so it is worth noteable that every request must be fulfilled with time span that is alloacted for that specified/required/wanted request otherwise server would send this type of message. so user must repeat the process and do it within server alloacted time.

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