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  2. List of HTTP header fields - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_header_fields

    The domain name of the server (for virtual hosting), and the TCP port number on which the server is listening. The port number may be omitted if the port is the standard port for the service requested. Mandatory since HTTP/1.1. [17] If the request is generated directly in HTTP/2, it should not be used. [18] Host: en.wikipedia.org:8080. Host: en ...

  3. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    The actual response will depend on the request method used. In a GET request, the response will contain an entity corresponding to the requested resource. In a POST request, the response will contain an entity describing or containing the result of the action. 201 Created The request has been fulfilled, resulting in the creation of a new ...

  4. XMLHttpRequest - Wikipedia

    en.wikipedia.org/wiki/XMLHttpRequest

    Various alternatives exist to circumvent this security feature, including using JSONP, Cross-Origin Resource Sharing (CORS) or alternatives with plugins such as Flash or Silverlight (both now deprecated). Cross-origin XMLHttpRequest is specified in W3C's XMLHttpRequest Level 2 specification. [17] Internet Explorer did not implement CORS until ...

  5. Cross-origin resource sharing - Wikipedia

    en.wikipedia.org/wiki/Cross-origin_resource_sharing

    A web page may freely embed cross-origin images, stylesheets, scripts, iframes, and videos. Certain "cross-domain" requests, notably Ajax requests, are forbidden by default by the same-origin security policy. CORS defines a way in which a browser and server can interact to determine whether it is safe to allow the cross-origin request. [1]

  6. HTTP - Wikipedia

    en.wikipedia.org/wiki/HTTP

    Since 1992, a new document was written to specify the evolution of the basic protocol towards its next full version. It supported both the simple request method of the 0.9 version and the full GET request that included the client HTTP version. This was the first of the many unofficial HTTP/1.0 drafts that preceded the final work on HTTP/1.0. [3]

  7. Same-origin policy - Wikipedia

    en.wikipedia.org/wiki/Same-origin_policy

    In computing, the same-origin policy (SOP) is a concept in the web-app application security model. Under the policy, a web browser permits scripts contained in a first web page to access data in a second web page, but only if both web pages have the same origin. An origin is defined as a combination of URI scheme, host name, and port number.

  8. Create and manage an AOL Mail account - AOL Help

    help.aol.com/articles/aol-mail-account-and-password

    Go to the main AOL page.; Click Sign in in the upper right hand corner.; Click Create an account at the bottom of the screen.; Enter and submit the requested information.

  9. PHP - Wikipedia

    en.wikipedia.org/wiki/PHP

    As of 21 January 2025 (two months after PHP 8.4's release), PHP is used as the server-side programming language on 75.0% of websites where the language could be determined; PHP 7 is the most used version of the language with 47.1% of websites using PHP being on that version, while 40.6% use PHP 8, 12.2% use PHP 5 and 0.1% use PHP 4.