Hi,

I have succesfully integrated PayPal Smart Payment Buttons in to a website that I'm working on by following the instructions here:

https://developer.paypal.com/docs/checkout/integrate/#

Up until today all was working well.  Clicking on any of the payment options (PayPal, Visa etc.) would launch the payment window.  I could successfully complete a payment and verify the transaction.

All of a sudden though, the call to paypal.Buttons() throws the following error:

Refused to display 'https://www.sandbox.paypal.com/us/home' in a frame because an ancestor violates the following Content Security Policy directive: "frame-ancestors 'self' https://*.paypal.com".

I can still launch the payment window by clicking a payment option, but it just displays the loading spinner and doesn't show the payment screen.

I also tested this on a live account and am getting the same error.

The demo buttons on the PayPal site also seem to be broken:

https://developer.paypal.com/demo/checkout/#/pattern/client

Has anyone else experienced this issue?  It seems like PayPal may have changed the content security policy on their end which is causing the issue?