This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the spec changes.

The URLUtilsReadOnly.protocol read-only property returns a DOMString containing the protocol scheme of the URL, including the final ':'.


string = object.protocol;


// In a Web worker, on the page https://developer.mozilla.org/en-US/URLUtilsReadOnly.href
var result = window.self.protocol; // Returns:'https:'


Specification Status Comment
The definition of 'URLUtilsReadOnly.protocol' in that specification.
Living Standard Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support Not supported [1] 3.5 (1.9.1) Not supported [1] Not supported [1] Not supported [1]
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support Not supported [1] Not supported [1] 1.0 (1.9.1) Not supported [1] Not supported [1] Not supported [1]

[1] Though not grouped in a single abstract interface, this method is directly available on the interfaces that implement it, if this interface is supported.

See also

Document Tags and Contributors

 Contributors to this page: teoli, namolmes
 Last updated by: teoli,