Reinitialization of parameters in UI Kit in Upload component?

Question

JavaScript

Hello, I'm trying to change the boot options, but it doesn't work.
Apparently, the initialization of the params option occurs once, after the page is loaded. Because when you try to change the parameters, the result is not given.
In general, when sending a request, you also need to pass access_key and access_value , which I get using Application.getTKey() and Application.getTVal() . If their value has changed after the page is loaded, then the request does not pass, if the value has not changed, the first request passes and the next one does not pass. The Upload
component itself Code settings

settings = {
                        single: true,
                        type:'json',
                        action: '/api/image/post',
                        allow: '*.(jpg|jpeg|gif|png)',
                        params: {
                            'access_key': Application.getTKey(),
                            'access_token': Application.getTVal()
                        },
                        complete: function(res){
                            if(res.message != 'Security error'){
                                Application.initAccess(res.token.key, res.token.value);
                                this.params ={// Даже так пробовал менять, не выходит
                                    'access_key': Application.getTKey(),
                                    'access_token': Application.getTVal()
                                };
                            }

                        }
}