Warning message: failed to parse headers about rvest HOT 3 CLOSED

> httr::with_verbose(
+   reviews <- url %>%
+     html() %>%
+     html_nodes("#REVIEWS .innerBubble")
+ )
-> GET /Hotel_Review-g37209-d1762915-Reviews-JW_Marriott_Indianapolis-Indianapolis_Indiana.html HTTP/1.1
-> User-Agent: curl/7.19.6 Rcurl/1.95.4.3 httr/0.5
-> Host: www.tripadvisor.com
-> Accept-Encoding: gzip
-> Cookie: TAUnique=%1%enc%3A8cBjDKxl6Y%2BM1yqPnuDEQ7oznqIvy0dD6jR%2BUBNUV6mwuaGa64vncw%3D%3D; TAReturnTo=%1%%2FHotel_Review-g37209-d1762915-Reviews-JW_Marriott_Indianapolis-Indianapolis_Indiana.html; CM=%1%FtrSess%2C%2C-1%7CHomeAPers%2C%2C-1%7CHanaPersist%2C%2C-1%7CRCPers%2C%2C-1%7CPU_quick2%2C%2C-1%7CWarPopunder_Persist%2C%2C-1%7Cviator_2%2C%2C-1%7CPU_quick1%2C%2C-1%7Cbrandpers%2C%2C-1%7Cviator_1%2C%2C-1%7CSaveFtrSess%2C%2C-1%7Cr_ta_2%2C%2C-1%7Cr_ta_1%2C%2C-1%7CLastPopunderId%2C94-610-34217%2C-1%7CBPSess%2C1%2C-1%7CPUExitSurvSess%2C%2C-1%7Ct4b-sc%2C%2C-1%7CSaveFtrPers%2C%2C-1%7CHanaSession%2C%2C-1%7Csessamex%2C%2C-1%7CCCPers%2C%2C-1%7CBPPers%2C1%2C1418824419%7Ctestses%2C%2C-1%7CMetaFtrSess%2C%2C-1%7CMetaFtrPers%2C%2C-1%7C%24%2C%2C-1%7CFtrPers%2C%2C-1%7Cvr_npu2%2C%2C-1%7CPUExitSurvPers%2C%2C-1%7Cvr_npu1%2C%2C-1%7Csh%2C%2C-1%7CRCSess%2C%2C-1%7CWShadeSeen%2C%2C-1%7CHomeASess%2C%2C-1%7CWAR_RESTAURANT_FOOTER_PERSISTANT%2C%2C-1%7Ctestpers%2C%2C-1%7C+r_lf_1%2C%2C-1%7CRBASess%2C%2C-1%7CCCSess%2C%2C-1%7CWAR_RESTAURANT_FOOTER_SESSION%2C%2C-1%7C+r_lf_2%2C%2C-1%7CRBAPers%2C%2C-1%7CWarPopunder_Session%2C%2C-1%7Ct4b-pc%2C%2C-1%7Cbrandsess%2C%2C-1%7Cpu_vr2%2C%2C-1%7Cpu_vr1%2C%2C-1%7Cpssamex%2C%2C-1%7C; ServerPool=C; TASession=%1%V2ID.6C1086872A204872724AB8C08B8055EF*SQ.1*LS.Hotel_Review*GR.94*TCPAR.40*TBR.53*EXEX.55*ABTR.29*PPRP.23*PHTB.39*FS.16*CPU.26*HS.popularity*ES.popularity*AS.popularity*DS.5*SAS.popularity*FPS.oldFirst*DF.0*LP.%2FHotel_Review-g37209-d1762915-Reviews-JW_Marriott_Indianapolis-Indianapolis_Indiana%5C.html*MS.2*TRA.true*LL.28206640*LD.1762915*EWS.Hotel_Review; TATravelInfo=V2*A.2*MG.-1*HP.2*FL.3*RVL.1762915_344*RS.1
-> accept: application/json, text/xml, */*
-> 
<- HTTP/1.1 200 OK
<- Via: 1.1 VSRVTMG03
<- Connection: Keep-Alive
<- Proxy-Connection: Keep-Alive
<- Transfer-Encoding: chunked
<- Expires: 0
<- Date: Wed, 10 Dec 2014 13:55:27 GMT
<- Content-Type: text/html;charset=UTF-8
<- Server: Apache
<- P3P: CP="NOI CURa ADMa DEVa TAIa OUR BUS IND UNI COM NAV INT DSP COR CAO PSA IDC ADM DEVi TAIi PSD IVAi IVDi CONi HIS CNT"
<- Vary:User-Agent
<- Pragma: no-cache
<- Cache-Control: no-cache,no-store,must-revalidate
<- Set-Cookie: TATravelInfo=V2*A.2*MG.-1*HP.2*FL.3*RVL.1762915_344*RS.1; Domain=.tripadvisor.com; Expires=Wed, 24-Dec-2014 13:55:27 GMT; Path=/
<- Set-Cookie: TASession=%1%V2ID.6C1086872A204872724AB8C08B8055EF*SQ.2*LS.Hotel_Review*GR.94*TCPAR.40*TBR.53*EXEX.55*ABTR.29*PPRP.23*PHTB.39*FS.16*CPU.26*HS.popularity*ES.popularity*AS.popularity*DS.5*SAS.popularity*FPS.oldFirst*DF.0*LP.%2FHotel_Review-g37209-d1762915-Reviews-JW_Marriott_Indianapolis-Indianapolis_Indiana%5C.html*MS.2*TRA.true*LL.28206640*LD.1762915*EWS.Hotel_Review; Domain=.tripadvisor.com; Path=/
<- Set-Cookie: ServerPool=C; Domain=.tripadvisor.com; Path=/
<- Set-Cookie: CM=%1%FtrSess%2C%2C-1%7CHanaPersist%2C%2C-1%7CHomeAPers%2C%2C-1%7CRCPers%2C%2C-1%7Cviator_2%2C%2C-1%7CWarPopunder_Persist%2C%2C-1%7CPU_quick2%2C%2C-1%7CPU_quick1%2C%2C-1%7Cbrandpers%2C%2C-1%7CSaveFtrSess%2C%2C-1%7Cviator_1%2C%2C-1%7Cr_ta_2%2C%2C-1%7Cr_ta_1%2C%2C-1%7CLastPopunderId%2C94-611-34218%2C-1%7CBPSess%2C2%2C-1%7CPUExitSurvSess%2C%2C-1%7Ct4b-sc%2C%2C-1%7CSaveFtrPers%2C%2C-1%7CHanaSession%2C%2C-1%7Csessamex%2C%2C-1%7CCCPers%2C%2C-1%7CBPPers%2C2%2C1418824527%7Ctestses%2C%2C-1%7CMetaFtrSess%2C%2C-1%7CMetaFtrPers%2C%2C-1%7CFtrPers%2C%2C-1%7C%24%2C%2C-1%7CPUExitSurvPers%2C%2C-1%7Cvr_npu2%2C%2C-1%7Cvr_npu1%2C%2C-1%7Csh%2C%2C-1%7CWShadeSeen%2C%2C-1%7CRCSess%2C%2C-1%7CWAR_RESTAURANT_FOOTER_PERSISTANT%2C%2C-1%7CHomeASess%2C%2C-1%7Ctestpers%2C%2C-1%7CRBASess%2C%2C-1%7C+r_lf_1%2C%2C-1%7CWAR_RESTAURANT_FOOTER_SESSION%2C%2C-1%7CCCSess%2C%2C-1%7CRBAPers%2C%2C-1%7C+r_lf_2%2C%2C-1%7CWarPopunder_Session%2C%2C-1%7Ct4b-pc%2C%2C-1%7Cbrandsess%2C%2C-1%7Cpu_vr2%2C%2C-1%7Cpu_vr1%2C%2C-1%7Cpssamex%2C%2C-1%7C; Domain=.tripadvisor.com; Expires=Sat, 07-Dec-2024 13:55:27 GMT; Path=/
<- Set-Cookie: TAUnique=%1%enc%3A8cBjDKxl6Y%2BM1yqPnuDEQ7oznqIvy0dD6jR%2BUBNUV6mwuaGa64vncw%3D%3D; Domain=.tripadvisor.com; Path=/; Expires=Fri, 09 Dec 2016 13:55:27 GMT; HttpOnly
<- 
Warning message:
Failed to parse headers:
Vary:User-Agent

> devtools::session_info()
Session info-----------------------------------------------------------------------------------
 setting  value                       
 version  R version 3.1.1 (2014-07-10)
 system   x86_64, mingw32             
 ui       RStudio (0.98.1091)         
 language en                          
 collate  German_Germany.1252         
 tz       Europe/Berlin               

Packages---------------------------------------------------------------------------------------
 package    * version    date       source        
 devtools     1.6.0.9000 2014-09-30 local         
 httr         0.5        2014-09-02 CRAN (R 3.1.1)
 magrittr     1.0.1      2014-05-15 CRAN (R 3.1.1)
 RCurl        1.95.4.3   2014-07-29 CRAN (R 3.1.1)
 rstudioapi   0.1        2014-03-27 CRAN (R 3.1.1)
 rvest      * 0.1.0      2014-11-22 CRAN (R 3.1.2)
 selectr      0.2.2      2014-02-21 CRAN (R 3.1.2)
 stringr      0.6.2      2012-12-06 CRAN (R 3.1.1)
 XML          3.98.1.1   2013-06-20 CRAN (R 3.1.2)