Flag '--web.disable-exporter-metrics' is not disabling 'promhttp_metric_handler_errors_total' metric

[mstoetzer]

node_exporter version:

node_exporter, version 1.3.0 (branch: HEAD, revision: c65f870ef90a4088210af0319498b832360c3366)
  build user:       root@4801f8f250a6
  build date:       20211118-16:34:14
  go version:       go1.17.3
  platform:         linux/amd64

node_exporter command line flags

[Unit]
Description=Node Exporter
After=network.target

[Service]
User=node_exporter
Group=node_exporter
ExecStart=/usr/local/bin/node_exporter \
  --collector.processes \
  --collector.textfile.directory="/var/lib/node_exporter/textfile_collector" \
  --web.disable-exporter-metrics \
  --web.listen-address="0.0.0.0:9100"

[Install]
WantedBy=multi-user.target

Are you running node_exporter in Docker?

Nope.

What did you do that produced an error?

Added the commandline flag '--web.disable-exporter-metrics', that disables promhttp_, process_, go_ metrics.

What did you expect to see?

The following metric should not be printed:

# HELP promhttp_metric_handler_errors_total Total number of internal errors encountered by the promhttp metric handler.
# TYPE promhttp_metric_handler_errors_total counter
promhttp_metric_handler_errors_total{cause="encoding"} 0
promhttp_metric_handler_errors_total{cause="gathering"} 0