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EventSource is an interface that exposes events from a server to the browser as they occur. It allows developers to push data to the browser as it happens, in real-time.
Last updated on : 2023-03-20
Browser Versions
IE
Edge
Firefox
Chrome
Safari
Opera
Fully Supported
Partially
No Support
Server-sent events on IE is not supported on any IE versions.
Server-sent events on Edge is fully supported on 79-111, and not supported on 12-18 Edge versions.
Server-sent events on Firefox is fully supported on 6-113, and not supported on 2-5 Firefox versions.
Server-sent events on Chrome is fully supported on 6-114, and not supported on 4-5 Chrome versions.
Server-sent events on Safari is fully supported on 5.1-16.4, and not supported on 3.2-4 Safari versions.
Server-sent events on Opera is fully supported on 11-95 and partially supported on 9.5-10 Opera versions.
Server-sent events on Safari on iOS is fully supported on 4.2-16.4, and not supported on 3.2-3.2 Safari on iOS versions.
Server-sent events on Android Browser is fully supported on 4.4-111, and not supported on 2.1-4 Android Browser versions.
Server-sent events on Opera Mobile is fully supported on 11.5-73 and partially supported on 10-11 Opera Mobile versions.
Server-sent events on Chrome for Android is fully supported on all Chrome for Android versions.
Server-sent events on Firefox for Android is fully supported on all Firefox for Android versions.
Server-sent events on Samsung Internet is fully supported on all Samsung Internet versions.
Data sourced from
Overall Browser Compatibility Score
Note:Server-sent events shows a browser compatibility score of 92. This is a collective score out of 100 to represent browser support of a web technology. The higher this score is, the greater is the browser compatibility. The browser compatibility score is not a 100% reflection for every browser and the web technology support. However, it does give you an estimate on how much you should rely on a particular web technology in terms of browser compatibility.
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