Intent to Prototype: Multicast Support for Direct Sockets API.
Chromestatus
Contact emails
vk...@google.comExplainer
https://github.com/explainers-by-googlers/Multicast-in-Direct-SocketsSpecification
NoneSummary
Allows Isolated Web Apps to subscribe to multicast groups and receive UDP packets from there, and to specify additional parameters when sending UDP packets to multicasts addresses.
Blink component
Blink>Network->Direct SocketsMotivation
1. Synchronous video stream from one device to the whole network of devices. For example, imagine in a shopping mall there would be multiple displays which show videos simultaneously on all devices. 2. Device discovery on a local network. mDNS protocol uses multicast sockets under the hood. In short, when a device joins a network, it sends a message: “Hello, I am headphones-10, my ip is ‘20.20.20.14’ . Who else is here?”, other devices reply and in such a manner all devices can know about each other without a central server.
Initial public proposal
https://github.com/WICG/proposals/issues/228TAG review
NoneTAG review status
PendingRisks
Interoperability and Compatibility
None
Gecko : No signal
WebKit : No signal
Web developers : No signals
Other signals :
WebView application risks
Does this intent deprecate or change behavior of existing APIs, such that it has potentially high risk for Android WebView-based applications?
None
Debuggability
None
Is this feature fully tested by web-platform-tests ?
NoFlag name on about://flags
NoneFinch feature name
NoneNon-finch justification
NoneRequires code in //chrome?
FalseEstimated milestones
No milestones specified
