How should I send JWT token in axios GET request?

Axios get() request accept two parameter. So, beside the url, you can also put JWT in it.

axios.get(yourURL, yourConfig)
.then(...)

In your case yourConfig might be something like this

yourConfig = {
   headers: {
      Authorization: "Bearer " + yourJWTToken
   }
}

Also you can read about what you can put in your config here https://github.com/axios/axios. Just search for "Request Config"

This works for me, try like -

let JWTToken = 'xxyyzz';
 axios
    .get(this.BASE_URL + '/profile/me', { headers: {"Authorization" : `Bearer ${JWTToken}`} })
    .then(res => {
       this.profile = res.data;
       console.log('profile is:', res.data);
      })
      .catch(error => console.log(error))