Axios/XMLHttpRequest is sending GET instead of POST in production environment

问题

I am running into a very strange issue. We are putting an app into production and one of the POST request is turning into a POST followed directly by a GET request to the same URL and the POST is never received in the backend (Laravel). In the chrome network tab it just looks like just a GET but with Burpsuite we can see the POST request.

The code responsible

async store() {
    // This prints post
    console.log(this.method());

    await this.form[this.method()]('/api/admin/users/' + (this.isUpdate() ? this.id : ''));

    if (!this.isUpdate()) {
        this.form.reset();
    }
},

The form.post method content

return new Promise((resolve, reject) => {
    axios[requestType](url, this.data())
    .then(response => {
        this.busy = false;
        this.onSuccess(response.data);
        resolve(response.data);
    })
    .catch(error => {
        this.busy = false;
        if (error.response.status == 400) {
            return this.displayErrors(error.response.data)
        }
        this.onFail(error.response.data.errors);
        reject(error.response.data);
    });
});

回答1:

This question was also answered by me in the Larachat slack forum, and for others sake here is the answer for the next one with such a problem.

Just a little back story. In the chat we found out that it was receiving a 301 error which is a redirect error. I had the same error recently when posting to a url on a staging server, it was working fine locally but not on the staging server.

The problem appeared to be a slash at the end of the post url.

So posting to https://example.com/post/to/ will not work.

Removing the / and posting to https://example.com/post/to will work.

回答2:

Just for info, I had the same thing - axios request was being redirected. For me though, it turned out to be some localization middleware causing the redirect!

I set up an alternative route in the Api routes file (again Laravel as in the question), bypassing that middleware (probably where the route should have gone in the first place!). All good now! Schoolboy error I guess!

来源：https://stackoverflow.com/questions/47208440/axios-xmlhttprequest-is-sending-get-instead-of-post-in-production-environment