@ivyfix Thanks for reaching out!
The file SonetelWidget.min.js is configured to be delivered compressed. We ran a check on your website and found that Google pagespeed shows everything is OK from a compression perspective. https://prntscr.com/sm74i7
We also tried via Chrome dev tools to compare the download size, compressed and uncompressed. https://prntscr.com/sm755i and it does seem that it is compressed.
Just in case there is still an issue, do feel free to reach out to our support at [email protected]
Hope this helps.