Node Service Assistance

We are currently using bright signs within our organization. They default to a serve content from a web address of displays.xyzdomain.com to the displays.

Is it possible to continue serving this content to the display attached to the HDMI port, but start a node service in the background on the device so that we can query as to whether the display is powered on? I was able to make the "node-js-test" autorun and index.html work to display the display status, but on the actual display it is showing a black screen with a cross on it, instead of our hosted content.


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