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
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rfc5545
sap-smart-forms
ogr2ogr
twitterapi-python
storybook
treelistview
vertical-sync
scrollableresults
blockchain
quorum
rte
workflow-engine
getelementbyid
morgan
ordinal-classification
c1-cms
vue-directives
expressionvisitor
iasyncenumerable
mathematical-optimization
image-thresholding
mu
twitter-bootstrap-2
element-plus
mui5
browser-action
jgit
python-sphinx
thrift