e than a single replica of the adapter. Due to the way Envoy Proxy was handling HTTP headers it was impossible to return multiple <code>Set-Cookie</code> headers from Mixer back to Envoy. Therefore we couldn&rsquo;t set all the cookies required for handling Web Application scenarios. The issue was recently addressed in Envoy and Mixer and we&rsquo;re planning to address this in future versions of our adapter. <strong>Note that this only affects Web Applications, and doesn&rsquo;t affect Backend Apps and API