URLPattern: protocol property
Baseline
2025
Newly available
Since September 2025, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
Note: This feature is available in Web Workers.
The protocol read-only property of the URLPattern interface is a string containing the pattern used to match the protocol part of a URL.
This is the normalized value of the protocol pattern passed to the constructor, an inherited value from a baseURL passed to the constructor, or the default value ("*"), which matches any protocol.
Value
A string.
Examples
Basic usage
The following example creates a URLPattern object with http{s}? for the protocol part and logs the property.
This pattern matches any URL that has the http or https protocol.
const pattern = new URLPattern({ protocol: "http{s}?" });
console.log(pattern.protocol); // 'http{s}?'
console.log(pattern.test("https://example.com/shoes?q=baby")); // true
Specifications
| Specification |
|---|
| URL Pattern # dom-urlpattern-protocol |
Browser compatibility
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