For the QuotesTweet exercise, I have the thing working on my local machine with webpack and nodejs. However, when I run it in CodePen, I get the following console error when attempting to send the quote:
Refused to display 'https://twitter.com/intent/tweet?
text=A%20house%20divided%20against%20itself%20cannot%20stand.%20//%20Abraham%20Lincoln’ in a frame because an ancestor violates the following Content Security Policy directive: “frame-ancestors ‘self’”
So far, my searches haven’t shed much light on this issue, although there are quite a few posts about it.