Document which (if any) svg attributes are disallowed

[erikdahlstrom]

https://github.com/ampproject/amphtml/blob/master/spec/amp-html-format.md#svg

Are there any svg attributes that are disallowed, or handled in a limited way (apart from the already listed "xlink:href")?

[Gregable]

This is implemented as a white list, so essentially there are an infinite number of disallowed attributes. That said, there are definitely some that I can think of which we conceptually disallow:

• Any attribute starting with 'on'
• Any animation attributes (e.g. attributeType, begin, restart, keySplines, accumulate, etc)

Also xlink:href is allowed if the target starts with '#', so in other words is local to the document.

[erikdahlstrom]

Is the white list of attributes too long to list in the docs? If not, please add the list to the docs, and otherwise consider adding a link to the complete set of allowed attributes.

[dvoytenko]

No, not long. We'll do.

[dvoytenko]

But my ideal solution would be to merge the validation rules into Github very soon and build docs based on them automatically. This way we'll have rules and docs sync'd 100%. So, I'd prioritize doing that.

[erikdahlstrom]

Sounds good to me.

[cramforce]

Is there anything to do here?

[Gregable]

Nothing left to do here specific to the original issue. The validator is now available with all of the attribute lists in the spec file.

I think we can use Issue #994 to track auto-generated documentation.