google map script tag key+library=places

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hi everybody,
i added places library to my google map script tag.
when i use it like:

<script type="text/javascript"  src="https://maps.googleapis.com/maps/api/js?sensor=false&libraries=places"></script>

every thing work fine but requests doesn't increase in my console "Traffic Reports for API"

so i trying to add my key into the tag like:

<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?sensor=false&libraries=places&key=mykey"></script>

but it broke the part of my script which need places library.
what is wrong?