Cache control is a set of HTTP headers sent by the server to control how the user's browser is allowed to cache resources.
In the previous chapter, we have seen that Spring Security automatically disables caching for secured resources.
If we want to benefit from cache control, we must first disable that feature:
security.headers.cache=false # Cache resources for 3 days spring.resources.cache-period=259200
Now, launch the application, go to the main page, and check the Chrome developer console. You will see that our JavaScript files are Gzipped and cached, as marked in the following screenshot:
If you want more control over your cache, you could add handlers for your own resources in your configuration:
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
// This is just an example
registry.addResourceHandler("/img/**")
.addResourceLocations("classpath:/static/images/")
.setCachePeriod(12);
}We could also override the Spring...