configuration error: no challengers - Documentation for TG2 REST API with Bearer Token Authentication? about tg2

[sreenadh]

I solved by myself by writing a middleware
config/middleware.py

class CorsMiddleware():
    def __init__(self, app, config=None, **kwargs):
        self.app = app

    def __call__(self, environ, start_response):
        if environ['REQUEST_METHOD'] == "OPTIONS":
            start_response('200 OK', [('Content-type', 'text/plain'),
                                      ('Access-Control-Allow-Origin', '*'), ('Access-Control-Allow-Methods', '*'), ('Access-Control-Allow-Headers', '*')])
            return ['\n'.encode('utf-8')]
        return self.app(environ,start_response)


app = make_base_app(global_conf, full_stack=True, wrap_app=CorsMiddleware, **app_conf)