Localhost iframe in editor failing

Anvil Q&A
1

What I’m trying to do:
Embed an iframe in a custom HTML page that calls localhost (during testing),
it calls a production url during deployment. Query is regarding the former:

What I’ve tried and what’s not working:
Until recently, I could run such a page in the Anvil editor and the iframe would render. However, since the past week or so, such a page (i.e., one that calls localhost) only works when called from outside the editor, i.e. via the published URL of my Anvil app.

Has something changed? It was rather convenient to be able to test within the editor. Not a show stopper but wanted to understand this.

3

Not an answer as to why it isn’t working now, but you may be able to work around it by running from the IDE in a new tab. That generally avoids issues with the IDE running your app inside its own iframe.

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