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A PCB manufacturer covers vias with solder mask?!
So I finally gave in to the dark side and ordered a 2-layer board of a known-good design from a PCB manufacturer. I used their recommended EAGLE cam file to create the Gerbers, sent them off and about a week later received the boards. The board quality looked decent on initial inspection, so I assembled one and proceeded with testing. It worked fine, so no shorted or opened traces, but I was having a difficult time scoping signals from vias that do double-duty as scope probe test points on my boards. Upon closer inspection I saw that the vias were covered with solder mask?!? That's a first for me... I hope this is an error/defect on their part, and not something they do by default because otherwise the board quality and service was good.
EDIT: just for reference, square vias go to common/ground on my boards while round with a silkscreened circle around them are for signals/power rails.
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