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Uncaught SecurityError: Failed to read the 'contentDocument' property from 'HTMLIFrameElement': Blocked a frame with origin "http://ramen.nandf.jp" from accessing a frame with origin "https://docs.google.com". The frame requesting access has a protocol of "http", the frame being accessed has a protocol of "https". Protocols must match.
Uncaught SecurityError: Failed to read the 'contentDocument' property from 'HTMLIFrameElement': Blocked a frame with origin "http://ramen.nandf.jp" from accessing a frame with origin "http://www.exsample.co.jp". Protocols, domains, and ports must match.