No way to specify source (No ShadowDom support!)

[tylercrocker]

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So this feels like really basic functionality that should exist now... but I noticed there is no way to specify a source to search for lazy load elements in. It's just hard-coded to search in document. This means that anything I have in a web component's shadow dom will be entirely missed, and there's no way to configure a new instance to delve into a shadow dom.

I'm going to start working on a PR to add this functionality in, but does anyone have any insight into this?

[mxswat]

Are there any updates?

[aFarkas]

@mxswat Sorry no. In short providing an API where you can switch the document would be probably easy, but providing an API where we would have to support multiple documents/shadowroots would be quite hard without sacrificing either performance or filesize.

[mxswat]

Thank you for the answer I'm a bit disappointed because I really wanted to use lazy sizes in one of my web components