Contact us
Get started
Loading...
Important Notice - Forums is archived

To simplify things and help our users to be more productive, we have archived the current forum and focus our efforts on helping developers on Stack Overflow. You can post new questions on Stack Overflow or join our Discord channel.

Product icon
TUTORIAL

Vaadin lets you build secure, UX-first PWAs entirely in Java.
Free ebook & tutorial.

Calling javascript synchronously by Enver Haase, 1 month ago
Recent Posts
Vaadin Forum3. Vaadin 6, 7, 8

Page refresh pushes session out of sync

Pavel Panchenko
6 years ago Jan 31, 2017 11:48am

I have some background thread, which works long time and changes ui. If user refreshes the page ui goes out of sync. I have an example app https://github.com/asdnf/vaadin-push-issue-test.git . 
Is there a common approach to handle these errors?

Olli Tietäväinen
6 years ago Jan 31, 2017 12:03pm

Hi,

have you tried using the @PreserveOnRefresh annotation in your UI?

-Olli

+1
Pavel Panchenko
6 years ago Feb 01, 2017 5:15am

Seems like it resolves my issue. Thank you.

Olli Tietäväinen
6 years ago Feb 01, 2017 6:07am

You're welcome! Note that introducing @PreserveOnRefresh has some potential downsides, like if your app ends up in an invalid state, you can't just reload the page to get out of it.

-Olli