Pre-populate the github new issue form using the querystring

Question

Is there a way to have a link for a new git issue that pre-populates labels and the assignment field to labels and a user that is specified in the query string?

My use case is that I'd like to have a link that I can give to testers that will ensure they select the correct labels for my feature and also have the git issue assigned to me.

Answer 1

I found out that the format is https://github.com/[user]/[repo]/issues/new?title=[title]&assignee=[user]&body=[body]&labels[]=label1&labels[]=label2

Answer 2

This is now:

https://github.com/[user]/[repo]/issues/new?title=[title]&assignee=[user]&body=[body]&labels=label1,label2

since Nov 2017. See: https://github.com/isaacs/github/issues/99#issuecomment-343061332