I have a Flutter Web application, and I want to validate the date and time of the Client side, just like Chrome or Whatsapp does. To do this, I decided to send in each request the current date and time within the headers, and validate it on the Server, but for some reason I received the error Refused to set unsafe header "date" in the browser console, and the field date is not found within the headers on the Server side. Could someone provide me with the correct way to do what I want, or the solution to my problem?
I have already searched several answers but I still do not have the solution, for example one of the most recent
The header name Date is reserved - only the browser may set it. See Section 4.6.2 of the XMLHttpRequest spec for the complete list. Can you change your header name to, say, Request-Date? (Of course, it seems it would be easy to forge.)
Also, rather than sending the value as a header, you could send it as a query parameter of a GET, or in the body of a POST (form or JSON).