Email content gets cut before umlauts

[Stefanyshyn]

Describe the Bug

I'm experiencing an issue where email content gets randomly cut when using @react-email/[email protected] and React 18. However, I noticed that in all cases, the cut happens right before umlauts (e.g., ä, ö, ü).

Unfortunately, I cannot share the original email content due to restrictions.

After upgrading to React 19, I haven't encountered the issue so far.

Which package is affected (leave empty if unsure)

No response

Link to the code that reproduces this issue

none

To Reproduce

1. Install the latest version of @react-email/components (0.0.33).
2. Create an email template that includes umlauts (specific example isn't provided, so please create one yourself).
3. Send the email via your email provider.
4. The email content might get cut before the first umlaut.

Expected Behavior

The full email content should be rendered correctly, including umlauts.

What's your node version? (if relevant)

No response