I am using Puppeteer in Heroku and sometimes I get a strange error that the browser cannot be launched because of limited space which does not allow the creation of /tmp/puppeteer_dev... directory with mkdtemp.
This is really strange because this error happens only once and then definitely stops without my intervention. So it gives me the impression that a kind of redimentioning takes place behind the scenes as a reaction from Heroku.
Anyway, I am trying to locate where these /tmp/puppeteer_dev directories are located in heroku filesystem but I cannot really find anything. Normally they are located in /tmp/ folder and they store information like browser storage, cookies, browser preferences, etc. I know that Heroku f/s is ephemeral but I would expect that at least during the execution of puppeteer a /tmp/subfolder would appear temporarily somewhere.
Any opinions?