how to fix uncaught (in promise) error: request failed with status code 404?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

An uncaught (in promise) error is an error that results when a request fails with a status code of 404. This status code indicates that the requested resource could not be found. There are several possible reasons for this error code to occur, including the resource being moved or deleted, the requested URL being incorrect, or the server being down.

1. Check the URL for the request to see if it is valid

  1. In your web browser, navigate to the URL for the request that failed with an uncaught error.
  2. In the address bar, type the following: http://localhost:8080/
  3. If the URL is valid, the page will load. If the URL is not valid, the page will display an error message.
  4. To fix the uncaught (in promise) error, you will need to correct the error in the URL.

2. Check to see if the server is online and responding to requests

  1. Open a web browser and navigate to the server's IP address or hostname.
  2. If the server is online and responding to requests, you should be able to access the server's pages.
  3. If the server is not online or responding to requests, you may need to check the server's configuration and troubleshooting steps.

3. If using a proxy server, check to see if the proxy settings are correct

To check if the proxy settings are correct, you can use the "if" statement in your code. The "if" statement will return a value depending on the condition that is met. In this case, the condition is that the proxy server is working correctly. If the proxy server is not working correctly, then the "if" statement will return a value of "false."

If the answers above didn't work then you should also try:

  1. Check the network connection to see if there are any issues.
  2. Clear the browser cache and cookies and try the request again.
  3. Try using a different browser.
  4. Contact the website or server owner to see if they are aware of the issue.