Client: url property
        
        
          
                Baseline
                
                  Widely available
                
                
              
        
        
        
          
                
              
                
              
                
              
        
        
      
      This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2018.
Note: This feature is only available in Service Workers.
The url read-only property of the Client
interface returns the URL of the current service worker client.
Value
A string.
Examples
js
self.addEventListener("notificationclick", (event) => {
  console.log("On notification click: ", event.notification.tag);
  event.notification.close();
  // This looks to see if the current is already open and
  // focuses if it is
  event.waitUntil(
    clients
      .matchAll({
        type: "window",
      })
      .then((clientList) => {
        for (const client of clientList) {
          if (client.url === "/" && "focus" in client) {
            return client.focus();
          }
        }
        if (clients.openWindow) {
          return clients.openWindow("/");
        }
      }),
  );
});
Specifications
| Specification | 
|---|
| Service Workers> # client-url> | 
Browser compatibility
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