Autoreload does not work on Essentials

Reproduction path:

1. Generate a project using archetype 2.01.00-alpha-1:

   mvn archetype:generate -DarchetypeGroupId=org.onehippo.cms7 -DarchetypeArtifactId=hippo-project-archetype -DarchetypeVersion=2.01.00-alpha-1 -DarchetypeRepository=http://maven.onehippo.com/maven2
   

2. Run the project, start the essentials at http://localhost:8080/essentials, add some components (news, list, etc).
3. Verify that the autoreload is enabled at /hippo:configuration/hippo:modules/autoreload/hippo:moduleconfig
4. Open a news item page in the http://localhost:8080/site/news/* (1)
5. Open project, add images folder to bootstrap/webfiles/src/main/resources/site/images, copy some images to this folder. In the console, there are some logs informing images files are synced into /webfiles repo.
6. Edit newspage-main.ftl, add a link to the new image file, e.g.

   <p>Insert an image from web files bundle</p>
   <@hst.webfile var="imglink" path="/images/Untitled.png"/>
   <img src="${imglink}">
   

Expected result: the inserted image to the ftl template is displayed on the browser (1) without refreshing.
Actual result: the inserted image and text updated to the ftl template is not updated. It's only updated only after refreshing manually.