Within an SPFx web part I’ve got a form that is completed by a user. To make sure that the user can’t navigate away from the form unless they cancel, save or close the form I’m adding a div that spans across the whole page. This is all great and quite easy to implement. Similar to the out of the box new item form in SharePoint online.
I noticed however that that when I simply type a different URL in the address bar of my browser that there is no way of protecting the dirty form.
To take this a step further I went to a modern page in SharePoint online. put this page in edit mode and then types a different URL in the browser. The browser now doesn’t give me any warning whatsoever and therefore my change made to a page are also not kept.
Then I tried the same with a new News pages ( a new feature that has just been added today!)
When I now try to type a different address I do get the expected warning:
So news pages protect themselves, but the out of the box web parts pages don’t
This is a big difference between the modern and traditional pages. So is there a way to protect your forms and or web part pages?
If the new pages that I just created has the protection then maybe there is something on that page. Maybe I can download the News Post.
But there is no download link available:
So I’m opening my library in SharePoint Designer. I never thought I would say this but this time I’m going to like SharePoint Designer. First of all I can’t open the site by using the site url. I’m simply getting for Forbidden messages, but when I use the https:/ /mytenant.sharepoint.com/sites/CommSite/SitePages/ URL my site opens without any problem!
Then using the export file, I’m getting my aspx file.
For my home page I’ve now found:
For my news article page I’m finding:
So it could be that the check of the page being dirty vs not dirty is controlled by a page layout as there isn’t much of a difference in the page otherwise.