Firewall blocking slide data files

Hi, I'm having an issue with an older (pre-2020) Storyline project. 

Our firewall flags as a threat the slide data files (in the html5>data folder). The firewall error message does not provide any additional information, and the files themselves have only one function call, window.globalProvideData(), with a long JSON of a slide's data as an argument.

Do you know why a firewall might find this suspicious?

I've attached an example of a blocked file. 

Thanks in advance!