how to make the symfony debug bar collapsed by default?

is there a command to make the de开发者_开发百科bug bar collapsed for every request?

I can't find it in the documentation.

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Not out of the box, but I've implemented the following small JavaScript hack (my example requires jQuery):

<script type="text/javascript">
jQuery(function($) {
  if (typeof sfWebDebugToggleMenu != 'undefined') {
    sfWebDebugToggleMenu();
  }
});
</script>

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For Symfony 3.0.9, javascript:

window.localStorage['sf2/profiler/toolbar/displayState'] = 'none';