{"type":"rich","version":1.0,"provider_name":"Speaker Deck","provider_url":"https://speakerdeck.com/","title":"MDNのWebAPI[spec]を全部読んでみた","author_name":"kuracchi","author_url":"https://speakerdeck.com/kura04","html":"\u003ciframe id=\"talk_frame_1518631\" class=\"speakerdeck-iframe\" src=\"https://speakerdeck.com/player/c9928f04380d46fc852ba536d149822e\" width=\"710\" height=\"399\" style=\"aspect-ratio:710/399; border:0; padding:0; margin:0; background:transparent;\" frameborder=\"0\" allowtransparency=\"true\" allowfullscreen=\"allowfullscreen\"\u003e\u003c/iframe\u003e\n","width":710,"height":399,"ratio":1.7777777777777777}