I understand that I can search for read messages by setting query.read(true);
on MDN: (query.read(true/false): Add the constraint that the message must be (or not be) marked as read.)
error console complains:
Error: Cannot query on attribute read because its canQuery parameter hasn't been set to true. Reading the comments about Gloda.defineAttribute may be a sensible thing to do now.
reading the recommended text does not help me.
any help is appreciated.