Add config option for cookie SameSite policy

Signed-off-by: Erik Michelson <github@erik.michelson.eu>

public/js/lib/common/constant.ejs

@@ -8,3 +8,5 @@ window.allowedUploadMimeTypes = <%- JSON.stringify(allowedUploadMimeTypes) %>
 window.linkifyHeaderStyle = '<%- linkifyHeaderStyle %>'
 
 window.DROPBOX_APP_KEY = '<%- DROPBOX_APP_KEY %>'
+
+window.cookiePolicy = '<%- cookiePolicy %>'

public/js/lib/common/login.js

@@ -20,12 +20,12 @@ export function resetCheckAuth () {
 export function setLoginState (bool, id) {
   Cookies.set('loginstate', bool, {
     expires: 365,
-    sameSite: 'strict'
+    sameSite: window.cookiePolicy
   })
   if (id) {
     Cookies.set('userid', id, {
       expires: 365,
-      sameSite: 'strict'
+      sameSite: window.cookiePolicy
     })
   } else {
     Cookies.remove('userid')