The HttpClient library used in confluence-collaborative-editor-plugin can't parse the Load Balancer's cookie having the Expires attribute in RFC 6265 format

2018-05-10 00:28:35,015 WARN [http-nio-8443-exec-162] [http.client.protocol.ResponseProcessCookies] processCookies Invalid cookie header: "Set-Cookie: AWSALB=YHI66k+9BPr9b+uT6eufHAbfP2yS5pCHmg1Ur5GFwFNUfQxIoLARtH9ybQHxF1C5m+epZS0XwCmr2a5FFm/7eLeABFudWX538PwbJbws0KEdFRCnegBvykPcuRKM; Expires=Thu, 17 May 2018 00:28:35 GMT; Path=/". Invalid 'expires' attribute: Thu, 17 May 2018 00:28:35 GMT -- url: /brikit/pages/doeditpageblock.action | page: 44771697 | traceId: 07222782dc9b8b7c | referer: https://confluence.airbnb.biz/brikit/pages/editpage.action?pageId=44771697&blockId=254223540 | action: doeditpageblock 2018-05-10 00:28:35,016 WARN [http-nio-8443-exec-162] [synchrony.service.http.SynchronyResponseHandler] failed Synchrony external changes API call returned 401: {"type":"unauthorized-access","message":"Not authorized to access this resource."} content-id: 53414653 rev: confluence$content$53414653.14 ancestor: null merges: {"confVersion":"1","trigger":"other","type":"external"} generate-rev: null generate-reset: null