Read the statement by Michael Teeuw here.
CORS, MotionEye & MMM-Remote-Control
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 @SdeGeata we updated libraries we use, so it could be anywhere. 
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 @sdetweil So what would you suggest? Is there another address I can have MotionEye listen on while leaving the Magic Mirror address on 0.0.0.0? I see an option to configure that in MotionEye.conf. I just don’t know what to set it to. 
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 Its funny though, it is only since MM v.2.17 I have been having issues with MMM_MotionEye MM is an electron app and electron uses chromium as browser. All browsers are more and more restrictive concerning cors when releasing new versions. I tested MMM-Motioneye with my setup and was not able to get it running. Another approach is to use MMM-iFrame instead which worked on my side. 
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 @karsten13 Yeah, I was messing with that a little today. I couldn’t find an iframe that was reliable enough. I ended up installing a Home Assistant add-on called go2rtc to serve the video and on the magic mirror, I installed the MMM-WebView module. It works a lot like an iFrame but more stable. So far, it seems to be working. I have MotionEye and SecuritySpy sending command line webhooks upon motion triggers to Home Assistant that in turn shows and hides the module on the magic mirror. I would have liked to get MotionEye working, but this actually sems faster and more stable. Thanks so much for your help though, to both of you. 

