Is there any solution you can just to save the form data when people accidentally close the browser off?

Hi

I've designed a new form for where I work with checklist jobs on it. 

See https://form.jotformeu.com/90964210686361

I have tried to use it on a tablet, all works great except I just sent the link to the tablet and if you navigate off the webpage by mistake it looses everything.

I only need to send the form data at the end of each week rather than sending the form everyday.

I tried viewing as Pdf form so i could just download it rather than using an online form but the webpage wouldn't open the pdf version?

https://eu.jotform.com/pdf-editor/90964210686361?fillable=1&preview=true

Is there any solutions you suggest, hopefully when you look at form you'll see what i need it to do.

Thanks Billy

We have the save and continue later by Autofill. You may consider enabling this in the form settings so if people accidentally close the browser, they can go back to the form with their data intact to continue.

Guide https://www.jotform.com/help/227-How-to-Enable-Auto-Fill-on-Forms.