flask_tasks/templates/app.html
{% extends 'base.html' %}
{% block left_side_bar %}
<div ng-include="'{{ left_side_bar_template | default('/static/partials/left.html') }}'"></div>
{% endblock %}
{% block content %}
<ng-view></ng-view>
{% endblock %}
{% block right_side_bar %}
<div ng-include="'{{ right_side_bar_template | default('/static/partials/right.html') }}'"></div>
{% endblock %}