If the "detached" identifier follows a mesh box type identifier, the detached identifier is not applied. In other words, the mesh is still attached. For example: -webkit-filter: custom(url(shader.vs) mix(url(shader.fs) normal source-atop), 1 1 border-box detached); Although the mesh box type is being removed from the Filter Effects spec, for now, we continue to accept the mesh box type in parsing because of existing content. Eventually, custom filters will transition to an at-rule syntax, once it is defined. Patch coming up.
Created attachment 181181 [details] Patch
Comment on attachment 181181 [details] Patch Thanks for the review! Setting cq+.
Comment on attachment 181181 [details] Patch Clearing flags on attachment: 181181 Committed r139248: <http://trac.webkit.org/changeset/139248>
All reviewed patches have been landed. Closing bug.