Ruben Taelman

A possible workaround is to only make iterators with `autoStart: false`. We often use `new ArrayIterator([], { autoStart: false })` in the Comunica tests.

We have _some_ things in the pipeline for this. \cc @bjdmeest

You're setting the source type correctly, so I don't immediately see what is going wrong here. What happens when you remove the `destination` from your context?

Aha, great to hear that this fixes to problem. (it's still a bug though, so we should leave this issue open) > I had this since I used the same...

For reference, the following actor should pass the test method, but it's not: https://github.com/comunica/comunica/blob/master/packages/actor-query-operation-sparql-endpoint/lib/ActorQueryOperationSparqlEndpoint.ts#L57-L77

The fix for this should be easy: at the location where the baseIRI is set (I think actor-init-query), we should ensure that `file://` is prepended if we detect that we're...

@andrewzhurov Yes, those cases can occur as well!

> 2 Insertions [Lower Priority - and requires more research] > I'm not quite sure how useful this would be Very important in fact :-) Things like [ShapeTrees](https://github.com/shapetrees/) would be...

This is not possible at the moment unfortunately. But you bring up a good point, as something like this would definitely be valuable to have. Either we need to allow...

Thanks for the list! I'll try to comment on each one separately hereafter. > Create a Generic bus-dereference to dereference files/http which then feed dereferenced streams to parse actors. Definitely!...