#7213 prevent pointless session start in webapi scope

Author: ihor-sviziev

app/code/Magento/PageCache/etc/frontend/di.xml

@@ -9,7 +9,7 @@
     <type name="Magento\Framework\App\FrontControllerInterface">
         <plugin name="front-controller-builtin-cache" type="Magento\PageCache\Model\App\FrontController\BuiltinPlugin"/>
         <plugin name="front-controller-varnish-cache" type="Magento\PageCache\Model\App\FrontController\VarnishPlugin"/>
-        <plugin name="page_cache_from_key_from_cookie" type="Magento\PageCache\Plugin\RegisterFormKeyFromCookie" />
+        <plugin name="page_cache_form_key_from_cookie" type="Magento\PageCache\Plugin\RegisterFormKeyFromCookie" />
     </type>
     <type name="Magento\Framework\Controller\ResultInterface">
         <plugin name="result-builtin-cache" type="Magento\PageCache\Model\Controller\Result\BuiltinPlugin"/>