Mirador 4.0.0 hides supplementing annotations from the Annotations panel — a `filteredMotivations` gotcha
I delivered IIIF Presentation 3 OCR text annotations with `motivation: "supplementing"`, and they showed up in Annona and other viewers but not in Mirador 4.0.0's Annotations side panel. Reverse-engineering the deployed Mirador bundle revealed that the released default for `config.annotations.filteredMotivations` is `['oa:commenting', 'oa:tagging', 'sc:painting', 'commenting', 'tagging']` — `supplementing` isn't in the allowlist. This post walks through how I found that, the `['commenting', 'supplementing']` array workaround, and the relevant spec / Cookbook references.
iiifmiradorannotationpresentation-api
