Tests framework event listeners output in Sources panel when service worker is present.
Selecting service worker thread
Context is service worker: true
Dumping listeners
Selecting main thread
Context is service worker: false
Dumping listeners
======== load ========
== Raw
[expanded] WindowRemoveinspected-page.html:1
useCapture: false
passive: false
once: false
handler: function onload(event) {
testFunction()
}