Property:

org.zkoss.web.classWebResource.cache

Default: true
[Since 3.6.3]

It specifies whether to allow the browsers to cache so-called class Web resources1.

By default, it is true. It means the static class Web resources are cached in browsers if possible, unless you upgrade ZK to a different version.

Notice the you can control the immutable period of the CSS files of class Web resources with
another property called org.zkoss.web.classWebResource.cache.CSS.hours.

If you are developing a component, it is better to turn it off (so you can force browser to load modified CSS and JS files by pressing F5).

<library-property>
    <name>org.zkoss.web.classWebResource.cache</name>
    <value>false</value>
</library-property>

  1. Class Web resources are resources that can be loaded by use of “~./*”. ↩