[BUG] Issues Adding Live TV Tuner Channels Behind Reverse Proxy #440
Description
Is there an existing issue for this?
- I have searched the existing issues
Current Behavior
When setting up a tuner and adding live TV channels, a.k.a. mapping channels; The proxy header is way overly-saturated with all of the channels. This causes, in my case, only up to 34 channels to be mapped. Any more than that causes a http request parsing error. I am aware I can increase the header buffer size. The solution to this issue was to bypass the proxy and access my PMS directly.
I understand this has a lot to do with the reverse proxy manager and service, but I feel like something could be done within the programming of the PMS application to use something other than the HTML header for channel mapping? I am not very experienced in HTML requests, so I do not know if there is another way to do this.
I also don't know if this is the place to bring this issue up, or if I should be putting this issue elsewhere. I apologize in advance if it is the latter.
Expected Behavior
A much larger number of channels could be mapped when accessing PMS behind a reverse proxy.
Steps To Reproduce
When accessing PMS behind Nginx Proxy Manager with default settings, try to map more than 34 channels for a new live tv tuner.
Environment
- OS: Unraid 7
- How docker service was installed: Pre-installed with Unraid OS
- Proxy Manager: Nginx Proxy Manager (Docker) - latest versionCPU architecture
x86-64
Docker creation
docker run
-d
--name='plex'
--net='web-net'
--pids-limit 2048
-e TZ="America/Chicago"
-e HOST_OS="Unraid"
-e HOST_HOSTNAME="ss-server"
-e HOST_CONTAINERNAME="plex"
-e 'NVIDIA_VISIBLE_DEVICES'='all'
-e 'NVIDIA_DRIVER_CAPABILITIES'='compute,video,utility'
-e 'PUID'='99'
-e 'PGID'='100'
-e 'UMASK'='022'
-l net.unraid.docker.managed=dockerman
-l net.unraid.docker.icon='https://raw.githubusercontent.com/linuxserver/docker-templates/master/linuxserver.io/img/plex-logo.png'
-v '/mnt/user/data/media':'/data/media':'ro'
-v '/tmp/plex':'/transcode':'rw'
-v '/mnt/user/appdata/plex':'/config':'rw'
--runtime=nvidia 'lscr.io/linuxserver/plex' && docker network connect home-net plexContainer logs
Jan 06, 2026 09:00:50.187 [22756244441912] DEBUG - Request: [172.18.0.4:50956 (WAN)] OPTIONS /media/grabbers/devices/1/channelmap?channelsEnabled=2.1%2C2.2%2C2.3%2C2.4%2C2.5%2C5.1%2C5.2%2C5.3%2C5.4%2C11.1%2C11.2%2C11.3%2C14.1%2C14.2%2C14.3%2C14.4%2C14.5%2C26.1%2C26.2%2C26.3%2C26.4%2C26.5%2C26.7%2C31.1%2C31.2%2C31.3%2C31.4%2C31.5%2C31.6%2C31.7%2C31.8%2C32.1%2C32.2%2C32.3%2C32.4%2C32.5%2C32.6%2C38.1%2C38.2%2C38.3%2C38.4%2C49.1%2C49.3&channelMappingByKey%5B2.1%5D=5fc76badc40548002d70bb40-5fc705fb7c6557002ee1ec60&channelMapping%5B2.1%5D=2.1&channelMappingByKey%5B2.2%5D=5fc76badc40548002d70bb40-5fc705fb088e7d002d4c729e&channelMapping%5B2.2%5D=2.2&channelMappingByKey%5B2.3%5D=5fc76badc40548002d70bb40-5fc705fb088e7d002d4c72a8&channelMapping%5B2.3%5D=2.3&channelMappingByKey%5B2.4%5D=5fc76badc40548002d70bb40-5fc705fc598c41002da3dca6&channelMapping%5B2.4%5D=2.4&channelMappingByKey%5B2.5%5D=5fc76badc40548002d70bb40-5fc705fc598c41002da3dc9b&channelMapping%5B2.5%5D=2.5&channelMappingByKey%5B5.1%5D=5fc76badc40548002d70bb40-5fc705ffc40548002d545aa9&channelMapping%5B5.1%5D=5.1&channelMappingByKey%5B5.2%5D=5fc76badc40548002d70bb40-5fc705ea7c6557002ee1e924&channelMapping%5B5.2%5D=5.2&channelMappingByKey%5B5.3%5D=5fc76badc40548002d70bb40-5fc705ec7c6557002ee1e960&channelMapping%5B5.3%5D=5.3&channelMappingByKey%5B5.4%5D=5fc76badc40548002d70bb40-614b5c31a7274dae05841e03&channelMapping%5B5.4%5D=5.4&channelMappingByKey%5B11.1%5D=5fc76badc40548002d70bb40-5fc705fd7c6557002ee1eccc&channelMapping%5B11.1%5D=11.1&channelMappingByKey%5B11.2%5D=5fc76badc40548002d70bb40-5fc705fe088e7d002d4c72f6&channelMapping%5B11.2%5D=11.2&channelMappingByKey%5B11.3%5D=5fc76badc40548002d70bb40-5fc705fea2236e002d69f887&channelMapping%5B11.3%5D=11.3&channelMappingByKey%5B14.1%5D=5fc76badc40548002d70bb40-5fc705eb088e7d002d4c6ff6&channelMapping%5B14.1%5D=14.1&channelMappingByKey%5B14.2%5D=5fc76badc40548002d70bb40-620b9e58e5664fb3b9d0b9ce&channelMapping%5B14.2%5D=14.2&channelMappingByKey%5B14.3%5D=5fc76badc40548002d70bb40-5fc705ecdd53a6002d8f8f99&channelMapping%5B14.3%5D=14.3&channelMappingByKey%5B14.4%5D=5fc76badc40548002d70bb40-5fc705eca62668002dcefab4&channelMapping%5B14.4%5D=14.4&channelMappingByKey%5B14.5%5D=5fc76badc40548002d70bb40-5fc705ecdd53a6002d8f8f7d&channelMapping%5B14.5%5D=14.5&channelMappingByKey%5B26.1%5D=5fc76badc40548002d70bb40-5fc705e8c40548002d5454ca&channelMapping%5B26.1%5D=26.1&channelMappingByKey%5B26.2%5D=5fc76badc40548002d70bb40-5fc705e8c40548002d5454e1&channelMapping%5B26.2%5D=26.2&channelMappingByKey%5B26.3%5D=5fc76badc40548002d70bb40-5fc705e9a05ef8002e615c17&channelMapping%5B26.3%5D=26.3&channelMappingByKey%5B26.4%5D=5fc76badc40548002d70bb40-5fc705ec7c6557002ee1e95b&channelMapping%5B26.4%5D=26.4&channelMappingByKey%5B26.5%5D=5fc76badc40548002d70bb40-616975b0b0c931eda5fc8482&channelMapping%5B26.5%5D=26.5&channelMappingByKey%5B26.7%5D=5fc76badc40548002d70bb40-63991a6e6b7de99c12b9ce24&channelMapping%5B26.7%5D=26.7&channelMappingByKey%5B31.1%5D=5fc76badc40548002d70bb40-669685262101807f1adeaac0&channelMapping%5B31.1%5D=31.1&channelMappingByKey%5B31.2%5D=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca60&channelMapping%5B31.2%5D=31.2&channelMappingByKey%5B31.3%5D=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5f&channelMapping%5B31.3%5D=31.3&channelMappingByKey%5B31.4%5D=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5b&channelMapping%5B31.4%5D=31.4&channelMappingByKey%5B31.5%5D=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5c&channelMapping%5B31.5%5D=31.5&channelMappingByKey%5B31.6%5D=5fc76badc40548002d70bb40-681a0204bc034498bbc710ef&channelMapping%5B31.6%5D=31.6&channelMappingByKey%5B31.7%5D=5fc76badc40548002d70bb40-681a0204bc034498bbc710f0&channelMapping%5B31.7%5D=31.7&channelMappingByKey%5B31.8%5D=5fc76badc40548002d70bb40-68dfc3166e4c5c795829dacb&channelMapping%5B31.8%5D=31.8&channelMappingByKey%5B32.1%5D=5fc76badc40548002d70bb40-5fc705fb088e7d002d4c727e&channelMapping%5B32.1%5D=32.1&channelMappingByKey%5B32.2%5D=5fc76badc40548002d70bb40-5fc706016b022a002d77f34e&channelMapping%5B32.2%5D=32.2&channelMappingByKey%5B32.3%5D=5fc76badc40548002d70bb40-5fc705fc598c41002da3dcbf&channelMapping%5B32.3%5D=32.3&channelMappingByKey%5B32.4%5D=5fc76badc40548002d70bb40-60e83cbfde21f9002d85d09d&channelMapping%5B32.4%5D=32.4&channelMappingByKey%5B32.5%5D=5fc76badc40548002d70bb40-60e83cbfde21f9002d85d0a3&channelMapping%5B32.5%5D=32.5&channelMappingByKey%5B32.6%5D=5fc76badc40548002d70bb40-616975b03bc9af1e55315d0d&channelMapping%5B32.6%5D=32.6&channelMappingByKey%5B38.1%5D=5fc76badc40548002d70bb40-5fc705ecc40548002d545603&channelMapping%5B38.1%5D=38.1&channelMappingByKey%5B38.2%5D=5fc76badc40548002d70bb40-5fc705ef8aba71002d8b7b03&channelMapping%5B38.2%5D=38.2&channelMappingByKey%5B38.3%5D=5fc76badc40548002d70bb40-5fc705ea104230002d14d8fe&channelMapping%5B38.3%5D=38.3&channelMappingByKey%5B38.4%5D=5fc76badc40548002d70bb40-5fc705f0336b43002e137d18&channelMapping%5B38.4%5D=38.4&channelMappingByKey%5B49.1%5D=5fc76badc40548002d70bb40-5fc705faa62668002dcefddc&channelMapping%5B49.1%5D=49.1&channelMappingByKey%5B49.3%5D=5fc76badc40548002d70bb40-5fc705fb104230002d14db75&channelMapping%5B49.3%5D=49.3 (8 live) #2903 Signed-in
Jan 06, 2026 09:00:50.187 [22756244441912] ERROR - Error parsing HTTP request: &channelMappingByKey%5B31.1%5D=5fc76badc40548002d70bb40-669685262101807f1adeaac0&channelMapping%5B31.1%5D=31.1&channelMappingByKey%5B31.2%5D=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca60&channelMapping%5B31.2%5D=31.2&channelMappingByKey%5B31.3%5D=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5f&channelMapping%5B31.3%5D=31.3&channelMappingByKey%5B31.4%5D=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5b&channelMapping%5B31.4%5D=31.4&channelMappingByKey%5B31.5%5D=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5c&channelMapping%5B31.5%5D=31.5&channelMappingByKey%5B31.6%5D=5fc76badc40548002d70bb40-681a0204bc034498bbc710ef&channelMapping%5B31.6%5D=31.6&channelMappingByKey%5B31.7%5D=5fc76badc40548002d70bb40-681a0204bc034498bbc710f0&channelMapping%5B31.7%5D=31.7&channelMappingByKey%5B31.8%5D=5fc76badc40548002d70bb40-68dfc3166e4c5c795829dacb&channelMapping%5B31.8%5D=31.8&channelMappingByKey%5B32.1%5D=5fc76badc40548002d70bb40-5fc705fb088e7d002d4c727e&channelMapping%5B32.1%5D=32.1&channelMappingByKey%5B32.2%5D=5fc76badc40548002d70bb40-5fc706016b022a002d77f34e&channelMapping%5B32.2%5D=32.2&channelMappingByKey%5B32.3%5D=5fc76badc40548002d70bb40-5fc705fc598c41002da3dcbf&channelMapping%5B32.3%5D=32.3&channelMappingByKey%5B32.4%5D=5fc76badc40548002d70bb40-60e83cbfde21f9002d85d09d&channelMapping%5B32.4%5D=32.4&channelMappingByKey%5B32.5%5D=5fc76badc40548002d70bb40-60e83cbfde21f9002d85d0a3&channelMapping%5B32.5%5D=32.5&channelMappingByKey%5B32.6%5D=5fc76badc40548002d70bb40-616975b03bc9af1e55315d0d&channelMapping%5B32.6%5D=32.6&channelMappingByKey%5B38.1%5D=5fc76badc40548002d70bb40-5fc705ecc40548002d545603&channelMapping%5B38.1%5D=38.1&channelMappingByKey%5B38.2%5D=5fc76badc40548002d70bb40-5fc705ef8aba71002d8b7b03&channelMapping%5B38.2%5D=38.2&channelMappingByKey%5B38.3%5D=5fc76badc40548002d70bb40-5fc705ea104230002d14d8fe&channelMapping%5B38.3%5D=38.3&channelMappingByKey%5B38.4%5D=5fc76badc40548002d70bb40-5fc705f0336b43002e137d18&channelMapping%5B38.4%5D=38.4&channelMappingByKey%5B49.1%5D=5fc76badc40548002d70bb40-5fc705faa62668002dcefddc&channelMapping%5B49.1%5D=49.1&channelMappingByKey%5B49.3%5D=5fc76badc40548002d70bb40-5fc705fb104230002d14db75&channelMapping%5B49.3%5D=49.3
X-Original-Method: OPTIONS
X-Original-URL: ``https://plex.domain.com/media/grabbers/devices/1/channelmap?channelsEnabled=2.1%2C2.2%2C2.3%2C2.4%2C2.5%2C5.1%2C5.2%2C5.3%2C5.4%2C11.1%2C11.2%2C11.3%2C14.1%2C14.2%2C14.3%2C14.4%2C14.5%2C26.1%2C26.2%2C26.3%2C26.4%2C26.5%2C26.7%2C31.1%2C31.2%2C31.3%2C31.4%2C31.5%2C31.6%2C31.7%2C31.8%2C32.1%2C32.2%2C32.3%2C32.4%2C32.5%2C32.6%2C38.1%2C38.2%2C38.3%2C38.4%2C49.1%2C49.3&channelMappingByKey[2.1]=5fc76badc40548002d70bb40-5fc705fb7c6557002ee1ec60&channelMapping[2.1]=2.1&channelMappingByKey[2.2]=5fc76badc40548002d70bb40-5fc705fb088e7d002d4c729e&channelMapping[2.2]=2.2&channelMappingByKey[2.3]=5fc76badc40548002d70bb40-5fc705fb088e7d002d4c72a8&channelMapping[2.3]=2.3&channelMappingByKey[2.4]=5fc76badc40548002d70bb40-5fc705fc598c41002da3dca6&channelMapping[2.4]=2.4&channelMappingByKey[2.5]=5fc76badc40548002d70bb40-5fc705fc598c41002da3dc9b&channelMapping[2.5]=2.5&channelMappingByKey[5.1]=5fc76badc40548002d70bb40-5fc705ffc40548002d545aa9&channelMapping[5.1]=5.1&channelMappingByKey[5.2]=5fc76badc40548002d70bb40-5fc705ea7c6557002ee1e924&channelMapping[5.2]=5.2&channelMappingByKey[5.3]=5fc76badc40548002d70bb40-5fc705ec7c6557002ee1e960&channelMapping[5.3]=5.3&channelMappingByKey[5.4]=5fc76badc40548002d70bb40-614b5c31a7274dae05841e03&channelMapping[5.4]=5.4&channelMappingByKey[11.1]=5fc76badc40548002d70bb40-5fc705fd7c6557002ee1eccc&channelMapping[11.1]=11.1&channelMappingByKey[11.2]=5fc76badc40548002d70bb40-5fc705fe088e7d002d4c72f6&channelMapping[11.2]=11.2&channelMappingByKey[11.3]=5fc76badc40548002d70bb40-5fc705fea2236e002d69f887&channelMapping[11.3]=11.3&channelMappingByKey[14.1]=5fc76badc40548002d70bb40-5fc705eb088e7d002d4c6ff6&channelMapping[14.1]=14.1&channelMappingByKey[14.2]=5fc76badc40548002d70bb40-620b9e58e5664fb3b9d0b9ce&channelMapping[14.2]=14.2&channelMappingByKey[14.3]=5fc76badc40548002d70bb40-5fc705ecdd53a6002d8f8f99&channelMapping[14.3]=14.3&channelMappingByKey[14.4]=5fc76badc40548002d70bb40-5fc705eca62668002dcefab4&channelMapping[14.4]=14.4&channelMappingByKey[14.5]=5fc76badc40548002d70bb40-5fc705ecdd53a6002d8f8f7d&channelMapping[14.5]=14.5&channelMappingByKey[26.1]=5fc76badc40548002d70bb40-5fc705e8c40548002d5454ca&channelMapping[26.1]=26.1&channelMappingByKey[26.2]=5fc76badc40548002d70bb40-5fc705e8c40548002d5454e1&channelMapping[26.2]=26.2&channelMappingByKey[26.3]=5fc76badc40548002d70bb40-5fc705e9a05ef8002e615c17&channelMapping[26.3]=26.3&channelMappingByKey[26.4]=5fc76badc40548002d70bb40-5fc705ec7c6557002ee1e95b&channelMapping[26.4]=26.4&channelMappingByKey[26.5]=5fc76badc40548002d70bb40-616975b0b0c931eda5fc8482&channelMapping[26.5]=26.5&channelMappingByKey[26.7]=5fc76badc40548002d70bb40-63991a6e6b7de99c12b9ce24&channelMapping[26.7]=26.7&channelMappingByKey[31.1]=5fc76badc40548002d70bb40-669685262101807f1adeaac0&channelMapping[31.1]=31.1&channelMappingByKey[31.2]=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca60&channelMapping[31.2]=31.2&channelMappingByKey[31.3]=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5f&channelMapping[31.3]=31.3&channelMappingByKey[31.4]=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5b&channelMapping[31.4]=31.4&channelMappingByKey[31.5]=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5c&channelMapping[31.5]=31.5&channelMappingByKey[31.6]=5fc76badc40548002d70bb40-681a0204bc034498bbc710ef&channelMapping[31.6]=31.6&channelMappingByKey[31.7]=5fc76badc40548002d70bb40-681a0204bc034498bbc710f0&channelMapping[31.7]=31.7&channelMappingByKey[31.8]=5fc76badc40548002d70bb40-68dfc3166e4c5c795829dacb&channelMapping[31.8]=31.8&channelMappingByKey[32.1]=5fc76badc40548002d70bb40-5fc705fb088e7d002d4c727e&channelMapping[32.1]=32.1&channelMappingByKey[32.2]=5fc76badc40548002d70bb40-5fc706016b022a002d77f34e&channelMapping[32.2]=32.2&channelMappingByKey[32.3]=5fc76badc40548002d70bb40-5fc705fc598c41002da3dcbf&channelMapping[32.3]=32.3&channelMappingByKey[32.4]=5fc76badc40548002d70bb40-60e83cbfde21f9002d85d09d&channelMapping[32.4]=32.4&channelMappingByKey[32.5]=5fc76badc40548002d70bb40-60e83cbfde21f9002d85d0a3&channelMapping[32.5]=32.5&channelMappingByKey[32.6]=5fc76badc40548002d70bb40-616975b03bc9af1e55315d0d&channelMapping[32.6]=32.6&channelMappingByKey[38.1]=5fc76badc40548002d70bb40-5fc705ecc40548002d545603&channelMapping[38.1]=38.1&channelMappingByKey[38.2]=5fc76badc40548002d70bb40-5fc705ef8aba71002d8b7b03&channelMapping[38.2]=38.2&channelMappingByKey[38.3]=5fc76badc40548002d70bb40-5fc705ea104230002d14d8fe&channelMapping[38.3]=38.3&channelMappingByKey[38.4]=5fc76badc40548002d70bb40-5fc705f0336b43002e137d18&channelMapping[38.4]=38.4&channelMappingByKey[49.1]=5fc76badc40548002d70bb40-5fc705faa62668002dcefddc&channelMapping[49.1]=49.1&channelMappingByKey[49.3]=5fc76badc40548002d70bb40-5fc705fb104230002d14db75&channelMapping[49.3]=49.3