Pete LePage introduces the Web Share Target API and the the availability in Chrome via an origin trial Until now, only native apps could register as a share target. The Web Share Target API allows installed web apps to register with the underlying OS as a share target to receive shared content from either the Web Share API or system events, like the OS-level share button. Read full post.
This article is over a year late. It was stuck in my drafts for a long time, yet I think the idea is something that we need to solve into 2018. It also turns out that other issues have arisen in the last year that make it a bit more relevant. I was in Indonesia earlier in 2016 idly chatting with developers and it came up in conversation that the web is screwed (they were the literal words).
Custom Elements need clear and parsable API documentation.