@AndriesF as your post was unconnected to the topic that you posted in, I’ve moved it to a topic of its own.
Please only post in related topics, or preferably create a new topic and supply all of the relevant information.
In fact, your question is answer already in these two posts, so a bit of searching would have eliminated the need to create a post at all…
or, if you’re running NodeJS (and this is where the background information is useful) you should read this: