How to control whether the asynchronous request initiated by web page A after jumping from B?

Control the Referer attribute of asynchronous request after A web page jumps

In web development, page jumps and asynchronous requests are very common. When page A jumps from page B, whether the asynchronous request initiated by page A carries the Referer attribute is a question worthy of attention. The Referer attribute is used to track user browsing paths, but sometimes it needs to be controlled or prohibited from passing, for privacy or other reasons.

By default, asynchronous requests for page A (redirected from page B) carry the Referer attribute, which contains the URL of the page that initiates the request. If you need to prevent Referer delivery, you can take the following methods:

Method 1: Use Meta Tags

On page A The following meta tags are added in the section:

<meta name="referrer" content="no-referrer">

This method instructs the browser to include the Referer attribute in all requests initiated from page A.

Method 2: Use window.open() method

This method is suitable for scenarios where dynamically controlled jumps are required. Avoid Referer passing through a new window and redirect immediately:

 window.open('javascript:window.name;','location.replace("' Jump URL '")');

This method cleverly bypasses the delivery of Referer by creating a new window and redirecting it using location.replace() method.

Method 3: Use iframe tags

Create a temporary iframe and use it to change the top-level window URL to achieve jumps, which can also avoid Referer passing:

 document.body.appendChild(document.createElement('iframe')).src='javascript:"top.location.replace(\'' Jump URL '\')"';

This method uses the iframe feature to dynamically modify the page URL to achieve the purpose of no Referer jump.

Which method to choose depends on the specific requirements. The Meta tag method is the most direct and is suitable for global control; window.open() and iframe methods are more flexible and are suitable for situations where dynamic control jumps are required. Note that these methods are not completely reliable and some browsers or servers may still pass Referer information.

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