This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The Navigator.connection read-only property represents a NetworkInformation containing information about the system's connection, such as the current bandwidth of the user's device or whether the connection is metered. This could be used to select high definition content or low definition content based on the user's connection.
connectionInfo = navigator.connection
| Specification | Status | Comment |
|---|---|---|
| Network Information API The definition of 'Navigator.connection' in that specification. | Editor's Draft | Initial specification |
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | 61 | ? | No support | ? | No support |
| Feature | Android Webview | Chrome for Android | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
| Basic support | 50 | 38 | 12.0[1] | 1.4 | No support | 37 | No support |
[1] The Network API can be disabled using the dom.netinfo.enabled preference.
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https://developer.mozilla.org/en-US/docs/Web/API/navigator/connection