Hello,

We had a very strange issue, and it was a bit hard to debug (Mind the !==) :

TL;DR: there was a BOM (U+FEFF) character in front of the string.

I would be very cool to have the vardumper displaying such characters.
I made a reproducer if it can help:

https://gist.github.com/lyrixx/8fe4a205864855bd23f1c0ec44b6d72d

BTW, my IDE warns me about that: