APIなどを提供しているサーバサイドにいくつかHeaderの設定が必要。 かつ、JSでのリクエストも少しHeaderをいじる必要がある。 サーバサイド Apache Header append Access-Control-Allow-Origin * Header append Access-Control-Allow-Headers Content-Type location / { root /usr/share/nginx/html; index index.html index.htm; add_header 'Access-Control-Allow-Origin' '*'; add_header 'Access-Control-Allow-Credentials' 'true'; add_header 'Access-Control-Allow-Headers' 'Conte
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