Hello everyone, I ran into such a problem.
Application: Vaadin 14 + SpringBoot, Apache Tomcat / 9.0.27, java 1.8
Periodically, it stops loading the start page of the application authorization (that is, it tries to load for a very long time and to no avail). But if you enter the ApacheTomcat admin panel and clear all sessions, the page starts loading normally, or the transition to incognito mode in the browser helps.
The browser is predominantly Chrome.
Please help.
As I understand it, the user session information that Apache raised is stored as a cookie in the user’s browser.
If something happened to the session, the user’s browser will still try to connect to it, because in his Cookie information is stored with the identifier of the old session