Cannot save chunk with base tag

This is very likely a problem with [mod_security](https://www.inmotionhosting.com/support/security/what-is-modsecurity-and-why-is-it-important/).

It’s probably triggering a security rule set by your host.

You may be able to bypass it by using < for the left bracket, or the host might disable the rule or mod_security itself if you ask. Sometimes you can turn it off yourself in .htaccess with this code:

<IfModule mod_security.c>
  SecFilterEngine Off
  SecFilterScanPOST Off
</IfModule>

Worst case, you can paste the code into the snippet field of the chunk in the DB.

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