Using GSheet getting 'Access-Control-Allow-Origin' error in console

hey guys. really need some help with the GSheet stack by weavium. have just purchased and having trouble getting it to work. I literally used the example file attached as a template, it worked fine on preview. then I replicated the google dataset used to my google sheet and published to web as csv, and swapped the urls, but to my surprise it did not work, i got this message showing in console:

Access to XMLHttpRequest at ‘https://doc-10-b8-sheets.googleusercontent.com/pub/…csv’) from origin ‘http://…’ has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is present on the requested resource.

would appreciated any advice to solve. have raised a ticket with weavium but response back may take a few days and i need to solve this by sunday!

thanks

furqan