If you experience this issue, confirm that the IcedTea Java web browser plug-in is installed. If not installed, follow these steps:
yum install icedtea-web.x86_64 /usr/sbin/alternatives --install /usr/lib/mozilla/plugins/libjavaplugin.so libjavaplugin.so /usr/java/default/jre/lib/i386/libnpjp2.so 20000 /usr/sbin/alternatives --install /usr/lib/mozilla/plugins/libjavaplugin.so /usr/java/default/jre/lib/i386/libnpjp2.so 20000 yum install hunspell-en
Please review Supported browsers in Uptime Infrastructure Monitor.