[Bug] Unexpected behavior when closing the PayPal window before it loads

🐞 Describe the Bug

There is an issue when the PayPal popup window is closed before it loads. It shows a loading element that keeps loading forever and the PayPal button is no longer clickable.

It seems it only happens when there’s an onClick callback. For some reason it makes the window load slower, it seems.

🔬 Minimal Reproduction

• Add an onClick callback to the Buttons implementation.
• Click the PayPal button
• Close the popup window before it loads

Here’s a codepen where you can reproduce it: https://codepen.io/romrz/pen/GRoNQKx

😕 Actual Behavior

The window is closed, but then the overlay appears with a loading element that keeps loading forever. No console errors are shown. After closing that overlay, the PayPal button is left unresponsive.

🤔 Expected Behavior

The popup window is closed and then you can click the PayPal button again to re-initiate the payment process

🌍 Environment

• Browser version: 81.0.4044.129
• OS version: Mac OS Catalina (10.15.4)
• SDK version (window.paypal.version): 5.0.128

Affected browsers

Tested on Chrome and FireFox

➕ Additional Context

Here’s a video of the issue in the codepen shared above: https://share.vidyard.com/watch/1jAbWvn7Z925VpDePdH4mx?

[romrz]

Thank you very much for taking care of this @mnicpt

[github-actions[bot]]

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