document.requestStorageAccess() may not be called on a document with an opaque origin, such as a sandboxed iframe without allow-same-origin in its sandbox attribute.
document.requestStorageAccess() ur yezmir ara ad d-yettusiwel ɣef yisemli s uɣbalu n opaque, am iframe n sandbox war allow-same-origin deg yimyerr-ines n sandbox.