Add err handling to page.on(console)

Mainly useful for debugging purposes, but otherwise this isn't really
needed except to ensure we exit asap from the for loop when the
context has ended and therefore the iteration has ended.

common/page.go

@@ -527,9 +527,13 @@ func (p *Page) onConsoleAPICalled(event *cdpruntime.EventConsoleAPICalled) {
 	p.eventHandlersMu.RLock()
 	defer p.eventHandlersMu.RUnlock()
 	for _, h := range p.eventHandlers[EventPageConsoleAPICalled] {
-		h(PageOnEvent{
+		err := h(PageOnEvent{
 			ConsoleMessage: m,
 		})
+		if err != nil {
+			p.logger.Debugf("onConsoleAPICalled", "handler returned an error: %v", err)
+			return
+		}
 	}
 }