I think it is important that this (or something similar) lands in modern browsers. The hard requirement on Javascript to use custom elements has been a big dete

I think it is important that this (or something similar) lands in modern browsers. The hard requirement on Javascript to use custom elements has been a big deterrent for me to get too heavily invested in web components. This is the missing piece of the puzzle that was going to be <link rel="import">. We should look to Javascript as a tool to progressively enhance web content rather than leaning on it so heavily.