Good solution. we can add the script to UserWorkForm HTML Rule.

Am I right that it will work only if we add additional action "Refresh" on the button?

Because the function setTimeout() will work only once.

Thanks Sreepriya. Good idea. The function setTimeout executes only once. So, I replaced the function with setInterval which works with my use case. setInterval saves the form every 60 seconds.

Following is my implementation -

1. Added the setInterval script to userworkform

2. added the autosave button in screenflow harness

3. Added Save script in the event action to save the case

It works as expected and saves the form every 60 seconds. However I have the following issues - 

1. My form has client side validation (ex., Required field validation). When the save triggers. I am getting pop-up "Please correct flagged fields before submitting the form!" and does not save the form

2. Let's say there are no client side validation in the form. during save operation, the form refreshes and goes blank for a second. This will impact user experience

I believe it has to do with SAVE script itself and nothing to do with Autosave functionality. I have attached the screenshots of the implementation. Pls help on this