Case solved: issue was triggered by one of my USB sticks constantly sending inputs

When exporting Tiny Sim, some keys are stuck:

@freds72 Which browser are you using, and do those keys start stuck and then pop up once you press them? Or do they start ok, and then become stuck once you press them?

Is anyone else having this issue?
Here's a test export: https://zep.neocities.org/jelpi/

@zep all games on my system exhibit the same bug on Chrome only
This is a Chrome/host "bug" as your Jelpi version doesn't work either.
Games hosted on pico forum: ok
Games hosted on itch: not ok

Browser report:

• Edge 44.17763.1.0: works (blurry mess!)
• Chrome 74.0.3729.131 (64 bits): stuck keys

OS:
Windows 10 (10.0.17763)
French locale