Are the PUT, DELETE, HEAD, etc methods available in most web browsers?

In web browsers, the most commonly used HTTP methods are GET and POST. These methods are widely supported and utilized for retrieving and submitting data on web pages. However, other HTTP methods, such as PUT, DELETE, and HEAD, are not fully supported in all browsers.

PUT and DELETE Methods

PUT and DELETE are typically used in RESTful APIs for updating and deleting resources, respectively. Although these methods are clearly defined in the HTTP protocol, most browsers do not provide native support for sending PUT or DELETE requests directly through HTML forms. Developers often use JavaScript with XMLHttpRequest or Fetch API to construct and send such requests. For example, sending a PUT request using the Fetch API can be done as follows:

javascript
fetch('https://api.example.com/data/1', {
    method: 'PUT',
    headers: {
      'Content-Type': 'application/json'
    },
    body: JSON.stringify({name: "Example"})
})
.then(response => response.json())
.then(data => console.log(data))
.catch(error => console.error('Error:', error));

HEAD Method

The HEAD method is similar to the GET method, but it does not return the response body; it only returns the response headers. This method is well-supported in browsers and is typically used to check metadata of resources without downloading the entire content, such as verifying if a webpage has been updated or validating the validity of a URL. Sending a HEAD request using JavaScript can be done as follows:

javascript
fetch('https://api.example.com/data/info', {
    method: 'HEAD'
})
.then(response => {
    console.log(response.headers.get('Content-Length'));
})
.catch(error => console.error('Error:', error));

Summary

Although browsers provide good support for GET and POST, the PUT, DELETE, and HEAD methods typically require implementation through JavaScript APIs such as XMLHttpRequest or Fetch. This indicates that support for these methods is not a standard feature in traditional HTML form interactions but requires additional programming work to utilize these HTTP methods.