My deployed jammming project only runs on cell phone

Hello,

For some unknown reason it seems that my deployed Jammming project (http://react-jocow-jam.surge.sh/) only works on cell phones (iPhone, Android), but not on (all) laptops.

Issue: when I hit the search button there are no search results showing up (on some devices).

Doe anyone have an idea why this happens ?
Regards,
Johan (Belgium)