You can now capture a screenshot of the preview with a single click!

Code inside of conditional comments get properly formatted when using the 'prettify' transformer.

The preview has been updated with a few improvements:

• The preview is securely sandboxed
• Updates occur without a white flash between versions
• Image blocking now blocks all remote resources, which is closer to the effect that turning images off has in the inbox.

The preview functionality is open source: https://github.com/useparcel/boxcutter