diff --git a/lib/sandboxed_renderer/init.js b/lib/sandboxed_renderer/init.js
index db711e638add..9bdd726992c6 100644
--- a/lib/sandboxed_renderer/init.js
+++ b/lib/sandboxed_renderer/init.js
@@ -94,6 +94,8 @@ Object.defineProperty(preloadProcess, 'noDeprecation', {
 
 process.on('loaded', () => preloadProcess.emit('loaded'))
 process.on('exit', () => preloadProcess.emit('exit'))
+process.on('document-start', () => preloadProcess.emit('document-start'))
+process.on('document-end', () => preloadProcess.emit('document-end'))
 
 // This is the `require` function that will be visible to the preload script
 function preloadRequire (module) {