The 406 error notacceptable message has several options for troubleshooting and fixing theissue.This article will explain the basics of the “406NotAcceptable” error, its causes, howto fix it, and steps to avoid it in the future. 406 happens when the server cannot respond with the accept-header specified in the request. In your case it seems application/json for the response may not be acceptable to the server. Issues with the Accept header: The client sends a request with an "Accept" header specifying its preferences for the response format, language, or encoding. If this header has an error, the server might respond with a 406 error. Deconstructing The Effect On SEO. Spring Tutorial: What is Http Status406 - NotAcceptable & Howto resolve it? .ajax(settings).done(function (response) { console.log(response); }); Does not work either. As soon as I build my Vue App and upload to the server I got the same 406status code every time I do a post request (I removed the postman-token bofere that). Debug theissue: If the 407 status code persists, debug theissue by examining the server and proxy logs, checking the network configuration, and troubleshooting any issues with the client or server software.