Key logger seems to work, but display of key stats seems broken?

[Naereen]

On the https://localhost:8443/index.html#hackingvis page, I see this:

I should try to fix this display issue!

It seems that the keylog.sh script breaks sometimes (never happened on my previous laptop) and displays:

X Error of failed request:  BadWindow (invalid Window parameter)                                                                      Major opcode of failed request:  20 (X_GetProperty)                                                                               
  Resource id in failed request:  0x3605239                                                                                         
  Serial number of failed request:  22                                                                                              
  Current serial number in output stream:  22

But if I restart it, it works again:

Logged key frequency:   at Sat Feb 20 01:14:50 CET 2021,    31  key release events, written to '../logs/keyfreq_1613714400.txt'
...
Logged key frequency:   at Sat Feb 20 01:15:10 CET 2021,    51  key release events, written to '../logs/keyfreq_1613714400.txt'

[Naereen]

Well, two weeks later, I still encounter the same bug regularly... but I have no idea why.

• I can do a dirty fix, of regularly relaunching the keylogger...
• Or just from time to time, I kill and relaunch my two ulogme tabs in Byobu/tmux... Honestly I never used these features of keylogging a lot, except to play with it. I still love my screen window titles logging, they are very insightful and nice, but I don't think I need to fix this keylogging issue.