"There have been several past attempts at doing this, notably Web Intents, which is no longer under development, and Mozilla's Web Activities, which is propriet

"There have been several past attempts at doing this, notably Web Intents, which is no longer under development, and Mozilla's Web Activities, which is proprietary to Firefox OS and Firefox for Android." https://github.com/chromium/ballista/blob/master/docs/explainer.md#how-is-this-different-from-other-web-interoperability-systems https://github.com/chromium/ballista/blob/master/docs/explai...