Directives to add to your Apache config file to call DataONE API CN methods in MetacatUI
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SSLProxyEngine on
ProxyPass "/cn/v1/" "https://cn.dataone.org/cn/v1/"
ProxyPassReverse "/cn/v1/" "https://cn.dataone.org/cn/v1/"


Enable these Apache mods:
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a2enmod proxy_http
a2enmod proxy