How to keep HTML tags?

[Luka Simon Thies]

I am automatically updating a table on a confluence page using the REST API.

To make this process easier, I wrote a template and added tags to the individual cells.

<td data="TAG">

Updating the page works completely fine, but when I try to get the page again, all these data-tags are missing again.

Is there a way or setting, that I am missing here?

[David Bakkers · Accepted solution]

Hello @Luka Simon Thies 

Is there a way or setting that I am missing here?

This is a frequently asked question. In short, the answer is no.

When you submit HTML as content for a page, it is parsed by Confluence, then sanitised, and some HTML element attributes, like data, are stripped out.

This is because Confluence's internal storage format is not pure HTML, but a hybrid format Atlassian calls XHTML, and it doesn't support the entire set of HTML objects / elements.

Google 'Confluence XHTML page storage format' to learn all about it.