This is a security precaution. It's not recommended and it's not documented in the settings.php file, but you can set allow_insecure_uploads to be TRUE if you wish to allow uploading files like...
You can create a small custom module using this hook:
https://github.com/backdrop-contrib/webform/blob/136c20cb1c51cea203f3f0bc5355237c1d4dbf84/webform.api.php#L652-L678
/**
* Determine...
Posted1 day 11 hours ago by Martin Price (yorkshirepudding) on:
Comments
If it's in a field or a node body, you can use the Markdown text filter in this module:
https://backdropcms.org/project/markdown