[Vuejs]-VueJS component called 2 times in nested route using Laravel

The problem is coming from the blade file : I was directly calling the parent component <onboarding-form> instead of the <router-view>.

So the component was loaded once, then the route system tried to load it again.

mybladefile.php

<div class="container" id="steps">
    <onboarding-form></onboarding-form>
</div>

become

<div class="container" id="steps">
    <router-view></router-view>
</div>