Implement more comprehensive support for HTML configuration

Katie_Clark — Wed, 24 Feb 2021 12:54:57 GMT

I am aware that there are certain tags in HTML that are supported within both ArcGIS Online and Portal, which can be seen in this documentation.

https://doc.arcgis.com/en/arcgis-online/reference/supported-html.htm

https://enterprise.arcgis.com/en/portal/latest/administer/windows/supported-html.htm

So I have both a question and a suggestion - why is the HTML support so limited (there are several elements I've used and have "broken" when they were no longer supported in version updates), or wanted to use and couldn't because they weren't supported. (for example, the class attribute of a div tag, or the details or summary tag). I also noticed that many other people have requested support for specific tags, such as iframe.

Would it be possible to implement support for the majority of tags (and their related attributes) on this page? https://www.w3schools.com/tags/default.asp

This would be *extremely* helpful in order to implement basic customization within widgets (i.e. Info widget), pop-ups, and Site/Hub pages. Adding this support would also help to minimize things "breaking" after version updates, as I'm sure I can't be the only one who has experienced this.

idea Implement more comprehensive support for HTML configuration in ArcGIS Online Ideas

Implement more comprehensive support for HTML configuration