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Why does OpenCV VideoCapture using a URL not work on Heroku?

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I'm trying to open a videoURL using cv2.VideoCapture on Heroku, and it consistently fails to open. I've called the same code on my local machine (Windows 10) and it ran with no problems. Does anyone have recommendations/buildpacks/alternatives to resolve this? OpenCV Version: 3.4.2.16 Python: 3.7 Current Buildpacks: - https://github.com/cstavish/heroku-buildpack-vips.git - https://github.com/jonathanong/heroku-buildpack-ffmpeg-latest.git - https://github.com/heroku/heroku-buildpack-apt - heroku/python - https://github.com/timanovsky/subdir-heroku-buildpack Open Cv Build info (Video) from the Heroku Dyno Video I/O: DC1394: NO FFMPEG: YES avcodec: YES (ver 58.21.104) avformat: YES (ver 58.17.101) avutil: YES (ver 56.18.102) swscale: YES (ver 5.2.100) avresample: NO GStreamer: NO libv4l/libv4l2: NO v4l/v4l2: linux/videodev.h linux/videodev2.h gPhoto2: NO

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