The protocol property of the Location interface is a string representing the protocol scheme of the URL, including the final ':'. 
 The protocol property of the Location interface is a string representing the protocol scheme of the URL, including the final ':'. 
A string.
js
// Let's an <a id="myAnchor" href="https://developer.mozilla.org/en-US/Location.protocol"> element be in the document const anchor = document.getElementById("myAnchor"); const result = anchor.protocol; // Returns:'https:'
| Specification | 
|---|
| HTML Standard  # dom-location-protocol-dev  | 
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
protocol | 
1 | 12 | 1 | 3 | ≤12.1 | 1 | 4.4 | 18 | 4 | ≤12.1 | 1 | 1.0 | 
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    https://developer.mozilla.org/en-US/docs/Web/API/Location/protocol