allow options requests

I've started using a different subdomain for my front end and back end.  This has made my app perofrm CORS OPTIONS requests.  When the request is made, it does not pass the token!  I considered configuring NGINX to handle the OPTIONS requests, but I'd rather let my app handle it.

Author: fitzyjoe

src/ngx_http_auth_jwt_module.c

@@ -147,6 +147,12 @@ static ngx_int_t ngx_http_auth_jwt_handler(ngx_http_request_t *r)
 	{
 		return NGX_DECLINED;
 	}
+
+	// pass through options requests without token authentication
+	if (r->method == NGX_HTTP_OPTIONS)
+	{
+		return NGX_DECLINED;
+	}
 
 	jwtCookieValChrPtr = getJwt(r, jwtcf->auth_jwt_validation_type);
 	if (jwtCookieValChrPtr == NULL)