Out of curiosity was it developed using Qlik Sense Cloud? I've just run QS Desktop through my browser and it works
Ahh, if it works in the browser but not in the native QS desktop then the issue is most likely an old browser version. Qlik Sense Desktop uses its own browser (Chromium), you could check which version if you open up dev tools and running navigator.userAgent .
Running that, I get this (if it makes any sense to you):
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.16 Safari/537.36 USC/1.0"
Ouch, that's a Chrome version that is almost 3 years old - didn't think of that.
It worked on one day last week but there didn't seem to be any reason for it. It started working suddenly and then stopped the same day. That was in Qlik Sense Desktop, version 12.something (listed in a previous comment).
I haven't used Qlik Sense Enterprise, to get it to work I just booted Qlik Sense Desktop in my Chrome browser (using http://localhost:4848/hub/) , which has the version 'Version 70.0.3538.102'. I've also shared it with friends who are using Chrome and it worked for them. One did mention that they initially tried to open it in Edge and that didn't work. They told me that Edge version was 'Microsoft Edge 41.16299.726.0'.
So, I finally got around to probably fixing the issue with mekaarogram not working in QS Desktop and IE, just had to change a few thousand lines of code :). v0.8.1 should work better https://github.com/miralemd/mekaarogram/releases