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Vaadin Flow is a Java framework binding Vaadin web components to Java. This is part of Vaadin 10+.

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The vaadin servlet sets a fixed cache time for any static resource delivered by it when in production mode. This fixed cache time is one hour and cannot be modified....

enhancement

### Description of the bug / feature As I've already explained in [my stackoverflow question](https://stackoverflow.com/questions/68889921/polymertemplate-instantiation-time), I'm not really happy with the instantiation time of the components created as extension to...

enhancement

### Description of the bug / feature **Prerequisites**: to spot earlier a possible regressions in Flow/Fusion preventing Spring-based applications to work as expected. Validation with starter is now possible during...

internal improvement
testing

### Description of the bug / feature Got the following error when trying to run/build an application whose path has a special character. ``` [ERROR] Failed to execute goal com.vaadin:vaadin-maven-plugin:22.0.0.alpha3:prepare-frontend...

bug
Impact: Low
Severity: Major

### Steps to reproduce - Download a starter for V14 + Springboot - Add `@Push(transport = Transport.LONG_POLLING)` to the main layout - Add some background thread which updates something on...

bug
Impact: Low
Severity: Major

### Description of the bug In vaadin Flow, browser history entries have incorrect page titles. Browser history is available by clicking and holding "Back" button in browser - after 2...

bug
Impact: Low
Severity: Minor

Backporting #8424 Create new mixin interface HasLabel(#3241) to Vaadin 14

enhancement

### Description of the bug Developer can't navigate to the CSS source of a constructed stylesheet anymore, making on-the-fly styling / debugging or looking up additional lumo utitlity classes inside...

external dependency
DX
theming

### Description of the bug Probably a combination of multiple things.. But I have a class extending from Composite<Grid<T>> with ``` protected Grid initContent() { return grid; } ``` I...

enhancement

### Description of the bug For shared styles a suggested solution is packaging themes in a separate jar. (We already did that because we use a framework project containing helper...

enhancement
theming