Streaming timeline does not work in Safari

[Error] Failed starting MastoAPI Streaming socket – TypeError: function is not a constructor (evaluating 'new EventTarget') — api.service.js:1106
TypeError: function is not a constructor (evaluating 'new EventTarget') — api.service.js:1106
	(anonymous function) (app.825e1a02a412c6d108a5.js:1:845786)
	promiseReactionJob

Impossible to enable checkbox