javascript - Detect ajax requests from raw HTML

Question

If you get a page's initial HTML, can you detect subsequent ajax requests?

Much like you can in the Developer Console, but programmatically. Have searched extensively for a solution but found none.

Answer 1

You can use PerformanceObserver with entryType set to "resource"

function perf_observer(list, observer) { 
   // Process the "resource" event 
} 
var observer2 = new PerformanceObserver(perf_observer); 
observer2.observe({entryTypes: ["resource"]});

See

• Count console.log objects

• Handling <?xml-stylesheet> similar to <link rel="stylesheet">?