Feedback typeform (green button) not working on Firefox desktop

[arredond]

Describe the bug

When on Firefox, clicking on the green feedback button in the lower-right corner (which should prompt up a Typeform survey), the page stays dimmed after a brief loading spinner.

To Reproduce

Steps to reproduce the behavior:

1. Go to the Developer Center's landing page or any subpage, such as the SQL API's
2. Click on the green feedback button in the lower left corner
3. Profit

Desktop (please complete the following information):

• OS: macOS Catalina (10.15.2)
• Browser: Mozilla Firefox
• Version: 72.04

Does not happen on the same computer using Chrome, version 79.0.3945.130.

Smartphone (please complete the following information):

Does not happen on Android 8.1.0 device (BQ Aquaris U2) using:

• Firefox 68.4.2
• Chrome 80.0.3987.87

@CartoDB/dc-managers

[arredond]

Update:

Just had an a-ha moment and tried again changing my Enhanced Tracking Protection preferences. I use Firefox with very strict privacy measures, specifically blocking cookies from all unvisited websites.

When relaxing this condition to only social-media trackers and cross-site tracking cookies, the form shows as expected.

Not sure if this can be fixed without forcing TypeForm cookies on the user but it's good to know the cause behind it.