How does “304 Not Modified” work exactly?
How are “304 Not Modified” responses generated? How does a browser determine whether the response to an HTTP request is 304? Is it … Read more
http-headers
What is HTTP “Host” header?
Given that the TCP connection is already established when the HTTP request is sent, the IP address and port are implicitly known — … Read more
Set cookies for cross origin requests
How to share cookies cross origin? More specifically, how to use the Set-Cookie header in combination with the header Access-Control-Allow-Origin? Here’s an explanation … Read more
How to remove ASP.Net MVC Default HTTP Headers?
Each page in an MVC application I’m working with sets these HTTP headers in responses: X-Powered-By: ASP.NET X-AspNet-Version: 2.0.50727 X-AspNetMvc-Version: 2.0 How do … Read more
Difference between Pragma and Cache-Control headers?
I read about Pragma header on Wikipedia which says: “The Pragma: no-cache header field is an HTTP/1.0 header intended for use in requests. … Read more
Custom header to HttpClient request
How do I add a custom header to a HttpClient request? I am using PostAsJsonAsync method to post the JSON. The custom header … Read more
Is REST DELETE really idempotent?
DELETE is supposed to be idempotent. If I DELETE http://example.com/account/123 it’s going to delete the account. If I do it again would I … Read more
what’s the difference between Expires and Cache-Control headers?
What’s the difference between Expires and Cache-Control headers? 7 Answers 7
What is q=0.5 in Accept* HTTP headers?
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-us,en;q=0.5 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 What do these ‘q=%f’ mean? 3 Answers 3
How big can a user agent string get?
If you were going to store a user agent in a database, how large would you accomdate for? I found this technet article … Read more