Blazegraph: How to LOAD gzip files?

Question

I need to load gzip-ed Trig files into a Blazegraph instance and the problem is that Blazegraph apparently cannot handle gzip over its REST API.

I tried to load the data via SPARQL with LOAD <file:///path/to/gzip/somerdf.ttl.gzip> INTO GRAPH <https://named.graph> but I get an HTTP 500.

Any ideas?