Unknown elements' children are treated the same as direct children of the svg element

[cysp]

Steps to reproduce the issue

1. Load an SVG that has a svg:mask element
2. Observe that the mask's path is rendered as though it was an element of the image

Specifications

• PocketSVG Version: HEAD
• Xcode Version: 9.x
• iOS/macOS Version: iOS 11.x

To get myself out of trouble, I've implemented some logic to just ignore unknown elements here:
master...cysp:feature/ignore-unknown-elements
… is that something that you would consider taking upstream or would you want to wait for a change that properly respects the mask?

[arielelkin]

Hi again, @cysp 🙂

I think ignoring unknown elements makes sense.

@fjolnir are you ok with this approach ?

This would also a good opportunity to clearly document which SVG elements can be rendered and which ones will be ignored.

[arielelkin]

closed via #121