Warning Before Go Back

[justinr86]

Fixes #2345

Description

Add warning when user navigates away after entering information. There are two scenarios that will display a warning.

Go Back

If the user enters information in a form and goes back to the previous page a modal will display a warning message. The user will have the option to proceed to the previous page (OK), or remain on the page (Cancel).

Leaving the App

If the user started a report but navigates away from the app by entering a URL in the address bar a warning message will be displayed. This will be the browser default message that uses it's language setting, not the currently selected language.

Any new packages installed?

N/A

Required followup work

N/A

Checklist:

• [ ] I have updated the azurescript.sh with any new environment variables and added them to the appsettings
• [ ] I have looked at my code on GitHub and it all looks good (ex: no random commented out code or console.logs)
• [ ] I have added and needed tests for my changes (in particular for new screens)
• [ ] I have added a comment to any confusing code
• [ ] I have added documentation to any modified front-end code. (Or added missing documentation)

[lgtm-com[bot]]

This pull request introduces 1 alert when merging ac17c41a4b008d4d6f76b5116532fb44c16bd290 into dd55c764a9d17e578fa46ae6678d61fc4923f267 - view on LGTM.com

new alerts:

• 1 for Syntax error

[justinr86]

tested all the page. when going back, the error message don't show up in anaonymous page and evidence page

Warning now appears on this page.