Postprocessors

Postprocessors runs after translators and before minifier. BundleTransformer.Core contains the UrlRewritingCssPostProcessor class, that is responsible for transformation of relative paths to absolute in CSS assets. If in the /configuration/bundleTransformer/core/css configuration element not set the defaultPostProcessors attribute, then an instance of the UrlRewritingCssPostProcessor class will added to list of active processors by default. If you have previously used the disableNativeCssRelativePathTransformation attribute to disable native transformation of relative paths to absolute in CSS assets, then now you need for this purpose use the defaultPostProcessors attribute (set an empty value or remove UrlRewritingCssPostProcessor from a comma-separated list).