How Can I Get the Previous URL in JavaScript?

Determining the Previous URL in JavaScript

When executing specific transitions and maintaining page history without employing anchors, developers may encounter the need to retrieve the previous URL. This article delves into the possibilities available to accomplish this task in JavaScript.

Utilizing document.referrer

In many scenarios, leveraging document.referrer will provide access to the URL of the page visited before arriving at the current page, assuming the user navigated through a link click. As specified in DOM Level 2, this method proves effective under these circumstances. However, it's important to note that document.referrer may not be accessible when users directly type website addresses into the address bar or submit forms.

Exploring window.history

While window.history enables navigation capabilities, it does not grant access to URLs within the session due to security and privacy concerns. If detailed URL history were available, every visited website could gain visibility into users' previous browsing history.

Alternative Approaches

If state management remains confined within a single website, employing conventional session management techniques like cookie data, URL parameters, or server-side session information offers a more stable and practical solution.

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