Missing header-blocking by browser

Hi, sometimes, we have a error on dev console of browser which block script of webpushr and webpushr doesn’t work anymore:

Access to fetch at 'https://bot.webpushr.com/prompt/bell' from origin 'https://www.monsite.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.

The reason is that sometimes webpushr server doesn’t serve the correct header “Access-Control-Origin” and browser block the JS ressource. Webpushr, can you add this header on your request-response.