preload_tag missing support for crossorigin tag

[ipmonk]

I have the following code, which theme-check is flagging as "For better performance, prefer using the preload_tag filter":

<link rel="preload" as="font" href="{{ header_font | font_url }}" type="font/woff2" crossorigin>

I tried using this liquid:

{{ header_font | font_url | preload_tag: as: 'font' }}

which generates this code:

<link href="not a real url" rel="preload" as="font" rel="preload">

But as its missing the crossorigin tag, this code isn't used due to CORS

I suspect the preload_tag function needs to be augmented to be able to add crossorigin. 

Is there another solution? Thanks

[ipmonk]

opened preload_tag filter lacking crossorigin option · Issue #1738 · Shopify/liquid (github.com)