The HtmlChannel is a test channel that shows outgoing messages in an HTML table under a specific URL.
| Key | Default | Description |
|---|---|---|
| channelId | defaultQ | Indicates the channel’s ID. |
| maxSize | 100 | Defines the number of messages held in memory. |
| urlSupplement | html | Appends the supplement to the channel manager URL, making the HTML channel accessible. |