spring / apache / reverse proxy / POST not supported

[olze oli]

I have a little application which listens on 127.0.0.1:8080.
This application works like a charm - it is a REST service with a very simple html form. The html form sends an ajax request to the rest service.
When i debug this application, it works as expected.

When i put this application to my server, it does not work.

 .w.s.m.s.DefaultHandlerExceptionResolver : Resolved [org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'POST' not supported]

This is the output of the spring application when i click the submit button of my html form.

@RequestMapping(value = {"/register"}, method = RequestMethod.POST)
    @ResponseBody
    public ResponseEntity register(@ModelAttribute("loginForm") LoginForm loginForm) {

       ... do some stuff ...
        return new ResponseEntity<>(regState, HttpStatus.OK);
    }

the html piece is this:
<form action="#" id="submitForm" method="post">    username: <input name="username" type="text"><br>    password: <input name="password" type="password"><br>    registration password: <input name="registrationPassword" type="password"><br>    <input type="submit" value="Submit"> </form> <script type="text/javascript">    $('#submitForm').submit(function (e) {        // reference to form object        var form = this;        // for stopping the default action of element        e.preventDefault();        // mapthat will hold form data        var formData = {}        //iterate over form elements        $.each(this, function (i, v) {            var input = $(v);            // populate form data as key-value pairs            // with the name of input as key and its value as value            formData[input.attr("name")] = input.val();        });        $.ajax({            type: form.attr('method'), // method attribute of form            url: form.attr('action'),  // action attribute of form            dataType: 'json',            // convert form data to json format            data: JSON.stringify(formData),        });    }); </script>

Anyone an idea what goes wrong here? Do i have to somehow configure the embedded tomcat in my spring application to allow POST requests?
If required i can also upload the piece of configuration of my apache server (the reverse proxy part), but i guess it has nothing to do with the problem i encounter... i guess

[Angus Ferguson]

I am trying to replicate your app, could you share the whole code, please?

[olze oli]

This problem has been solved. I use now a complete subdomain for this part and it seems to work.
Currently struggling on another problem, the matrixregistration.config file is not found in the classpath.
If you still want to take a look at - feedback is very appreciated!
https://gitlab.com/olze/matrixregistration

[Al Hobbs]

Considering that it works when you debug, there must be something wrong on the server.  It says specially that POST is not supported so it's probably not a problem with your app but some configuration in your server.

[Al Hobbs]

Oh, so it was a problem with the app?

[Al Hobbs]

What do you mean by you use a complete subdomain?

[olze oli]

I guess this is the common way to configure that: 1 app -> 1 subdomain.
This application is running on localhost:8080, the apache running on that production server runs on :80 and :443, firewall blocks everything else.
When a request comes in at matrix.myhost.de, all requests are redirected to localhost:8080 to that application.
I thought (and thats probably the mistake), that i somehow can get that working without creating an extra subdomain. So if myhost.de/register is accessed, i can somehow make the index.html work that all requests corresponding to this one event (registration) are forwarded. But seems like thats impossible. Or i am not advanced enough. So i created a new subdomain, matrix.myhost.de - all requests to this complete domain are now forwarded to the application, thats how it works now.

[Angus Ferguson]

This problem has been solved.

Great!

[Al Hobbs]

Could you have added another path to the url?  Like instead of matrix.mysite.de, you do mysite.de/matrix/register.   Would that have worked also you think?

[olze oli]

Al Hobbs wrote:Would that have worked also you think?

I am pretty sure: no