0👍
You can force the component to rerender by giving a :key property and update it every time when you want the component to be rebuilt.
In your case, you have to change componentKey at that place
if (result === true) {
request.post('api/festivities/delete', {day: arg.event._instance.range.start, name: arg.event._def.title})
.then(answer => {
this.componentKey++;
this.$router.go()
})
}
Source:stackexchange.com