Is there a possibility to pass a parameter with the value of null to axios? It seems that null values are just ignored...
An empty string should do the trick.
var data = new FormData();
data.append('location_id', '');
axios.post('/location/update', data)
.then(function(response) {
console.log(response.data);
})
.catch(function(error) {
console.log(error);
});