I created a new controller with a new route. I dump generate my new fos_js-routes.json with this command : php bin/console fos:js-routing:dump My new json was
microsoft-edge-chromium
vimspector
github-codeowners
custom-build
admin-rights
wordprocessingml
stochastic
ggplot2
azure-vm
rxjs-marbles
cdata
azure-cloud-shell
submit-button
multi-window
ngrx-store
recursive-descent
entity-model
flutter-razorpay
scalatags
crosstab
blobs
cognito
jta
programming-pearls
remotestorage
eloquent-relationship
interchange
keyup
material-design-in-xaml
gmpy