I am able to use the create topic API to create simple text messages and push them into my Discourse instance. If I want to create richer messages containing links, images or other HTML what are the restrictions? I have already found that including image URL’s with imgur links causes the API to return a 400 (Bad Request) error. Are there other restrictions on HTML Tags that may also cause problems? Is the HTML whitelist applied on the server side of these API’s? How much must I sanitize?
The use case here is creating new topics from a structured page on our web site, not from within the forum itself.