As a user of the ATT&CK Navigator, I want to be able to export my layers into .xlsx files.
It looks like chrome may be blocking the Navigator from saving .xlsx files. Steps to reproduce:
- Open the official ATT&CK Navigator Instance
- Open a layer file (e.g the heatmap example)
- Click the export to excel button
- Choose a destination to save to
- A warning will show up in the downloads toolbar instead of saving the layer:

该提问来源于开源项目:mitre-attack/attack-navigator
