Special Characters for Confluence Rest API content

[Lawrence Chase]

When using the confluence REST API and posting HTML for the content when I have a > or < in the content it errors out.  When I read a page content with a > or < I see it come out as &lt; and &gt; respectively.  When I switch my content post to use the same representation, they show up literally as &lt; and &gt; in the page instead of the < and >.

[Boris Berenberg - Atlas Authority]

What content type are you submitting your request body as?

[Jordan Carson]

I know this is an old post, however I am facing the same issue. 

Trying to hit the following: https://<confluence base>/confluence/rest/api/content?spaceKey={SPACEKEY}&title={TITLE}&expand=body.storage"

When the title includes a ">" or "<" it completely breaks/errors, however it does work when these symbols are encoded.

• > is %3E
• < is %3C

I cannot find anything in the documentation on special characters, is there a list of which characters that must be encoded for the API to not error out?