openlayers/ol3 — pull request #2790 by jmiller-boundless (2014-10-02 18:54:08+00:00)
Title: Cluster get source features

Using clustersource with a servervectorsource is not triggering feature loading from the server. The proposed change adds this.source_.loadFeatures(extent, resolution) to the ol.source.Cluster.prototype.loadFeatures function to force loading.