This page describes rich text formatting for the Entities API (for example, fields.description on a feature). The Entities API enforces a strict HTML whitelist: any unsupported tag results in a 400 response.
When sending rich text to the Entities API:
- Always wrap content in a tag (e.g.
<p>text</p>). Plain text is not accepted. - Use only the tags listed in the table below.
- Close every tag, including void elements (
<br/>,<hr/>). - Quote all attribute values.
Notes API uses different rulesFeedback (notes) can arrive from many sources and is read-only in the UI, so the Notes API strips visual styling and keeps only semantic tags rather than rejecting input.
| Tag | Description |
|---|---|
<h1>, <h2> | Headers |
<p> | Paragraph |
<b> | Bold |
<i> | Italics |
<u> | Underline |
<code> | Code |
<ul> | Unordered list |
<ol> | Ordered list |
<li> | List item |
<a> | Link |
<hr/> | Horizontal line |
<pre> | Code block |
<blockquote> | Block quote |
<s> |