This has yet to be sorted out. I sent you an email with the info you requested.
This had been working for us, and now it isn't. I am using embedded/included sources in the actual source map (so all the source code is actually in the .map file, instead of pointing to the files). Is there something going on with this?
I have a very similar situation... sometimes one user produces a ton of errors, and I make use of the meta properties to include their user_id and some other basic info. Would be great to be able to filter out or limit by this