Actually it was outside as the picture indicates.
This is cool, it looks like you photographed her as she was making stabilimenta web, the spinnerets pivot to make the fine zigzag webbing. This site unfortunately has some pre-chosen default answers on the submission form that include “yes” in web – and “indoors.” I’m not sure which orbweaver species this is off-hand. Anyone can feel free to jump in if you know. 🙂