 HTTPS. The browser remembers this directive in a database, but if this database is not partitioned, then it can be used to track users across websites."</span></div></td><td><div class='dataPoint tooltipParent bad'
> &nbsp;
<span class="tooltipText">write: set HSTS flag

read: read HSTS flag

result, same first party: not tested

result, different first party: Upgraded to https

unsupported: false

passed: false

test failed: false</span>
</div></td></tr><tr><td><div class="tooltipParent">iframe cache<span