错误-使用fetch未找到JWT令牌

I am new to react, and mostly to javascript. I am using react for a web app hosted on localhost:3000 with node.js and symfony 2.8 for my back end, hosted on localhost:80 with apache, that exposes an api secured with lexik and fos user. Before securing the api, everything works fine. After securing the api, I get a 401 error when using fetch as follow:I am new to react, and mostly to javascript. I