Not implemented: navigation (except hash changes)

The error message “Not implemented: navigation (except hash changes)” typically occurs when attempting to perform navigation actions or methods that are not supported or implemented in the current context.

This error often arises when trying to use navigation functions like pushState() or replaceState() to modify the browser history, but these methods are not available for use. Another common scenario is attempting to use regular navigation actions like window.location.href or window.location.assign() in a restricted environment where such navigation is disallowed.

It’s important to note that the specifics of this error will vary depending on the context in which it occurs. Here are a couple of examples:

• Example 1:
  
  Imagine you are working with a single-page application (SPA) built with a framework like React or Angular. In such cases, manual browser navigation methods like window.location.href or history.pushState() are typically discouraged or not supported. Instead, the framework handles the routing and navigation internally, allowing the application to visually navigate without actually reloading the page. Attempting to use the unsupported navigation methods in this scenario would result in the “Not implemented: navigation” error.
• Example 2:
  
  Suppose you are developing a web application that is running within an embedded web view of a mobile app. These embedded web views often come with certain restrictions, such as accessing native device features or performing certain navigation actions that could break the expected flow of the app. Consequently, trying to perform traditional page navigation through JavaScript methods like window.location.assign() may trigger the “Not implemented: navigation” error message due to the imposed limitations.

Generally, when encountering this error, it is necessary to review your code and confirm that the navigation methods or actions you are attempting to use are appropriate for the current context and environment. Consider researching any restrictions or alternative methods provided by the framework you are using or the environment in which your application is running.