Deflate compression error #53

i have found an error while i'm compressing a text with the deflate compression.

this is the code used:

var compressed = new JSZip().file("records.txt",JSON.stringify(packet)).generate({base64:false,compression:"DEFLATE"});

where the result of the JSON.stringify(packet) is:
{"RTS_1PG_SEC_DETAIL_REPONSE":"[["poid_sect_detail","tmp_activity",["07431370856073626","07431370856123482","07431370857111864"],"clgcode",[null],"data_agg",["10-06-2013 11:21:13","10-06-2013 11:22:03","10-06-2013 11:38:31"],"user_id","value"],[1359,0,0,0,743,-1],[1360,0,0,0,743,-1],[1938,0,0,0,743,-1],[2118,0,0,0,743,-1],[2119,0,0,0,743,-1],[2120,0,0,0,743,-1],[2121,0,0,0,743,-1],[1352,0,0,0,743,-1],[1353,0,0,0,743,-1],[1112,1,0,1,743,-1],[1113,1,0,1,743,-1],[1116,1,0,1,743,-1],[1117,1,0,1,743,-1],[1119,1,0,1,743,-1],[1120,1,0,1,743,-1],[1121,1,0,1,743,-1],[1114,1,0,1,743,-1],[1115,1,0,1,743,-1],[972,2,0,2,743,-1],[974,2,0,2,743,-1],[1941,2,0,2,743,-1],[978,2,0,2,743,-1],[979,2,0,2,743,-1],[980,2,0,2,743,-1],[981,2,0,2,743,-1],[975,2,0,2,743,-1],[976,2,0,2,743,-1]]","RTS_1PG_PRODUCT_REPONSE":"[["tmp_activity",["07431370856073626","07431370856123482","07431370857111864"],"clgcode",[null],"poid_product","stato_presenza","data_agg",["10-06-2013 11:21:13","10-06-2013 11:22:03","10-06-2013 11:38:31"],"user_id"],[0,0,2169,2,0,743],[0,0,2170,2,0,743],[0,0,2171,2,0,743],[0,0,2172,1,0,743],[0,0,2173,2,0,743],[0,0,2175,2,0,743],[0,0,2176,2,0,743],[0,0,3082,2,0,743],[0,0,2177,3,0,743],[0,0,3083,3,0,743],[0,0,3084,2,0,743],[1,0,2010,2,1,743],[1,0,2011,3,1,743],[1,0,2006,2,1,743],[1,0,2007,2,1,743],[1,0,2008,2,1,743],[1,0,2009,2,1,743],[2,0,1692,null,2,743],[2,0,1693,null,2,743],[2,0,1694,null,2,743],[2,0,1695,null,2,743],[2,0,1696,null,2,743],[2,0,1697,null,2,743],[2,0,1676,1,2,743],[2,0,1677,1,2,743],[2,0,1678,2,2,743],[2,0,1679,2,2,743],[2,0,1680,2,2,743],[2,0,1681,2,2,743],[2,0,1682,2,2,743],[2,0,1683,2,2,743],[2,0,1684,2,2,743],[2,0,1685,2,2,743],[2,0,1686,2,2,743],[2,0,1687,2,2,743],[2,0,1690,2,2,743],[2,0,1691,2,2,743],[2,0,1892,3,2,743]]","RTS_OCLG_LOCAL":"[["ClgCode_local","user_id",["CAMILLA.BORZILLO"],"clgcode_sync",[null],"CardCode",["10338420"],"Notes",[""],"Recontact","Closed",["N"],"CloseDate",[null],"ContactPer",[null],"Tel",[null],"Fax",[null],"CntctSbjct","AttendUser","CntctCode",[null],"UserSign","Action",["M"],"Details","CntctType","BeginTime","ENDTime",[null],"Priority",["1"],"endDate",["31-12-2013 00:00:00","31-07-2013 00:00:00"],"status","personal",["Y"],"inactive",["N"],"prevActvty","AtcEntry",[null],"U_CATEGORIA",[null],"U_insegna",[null],"U_tipologia",[null],"U_tipo",[null],"U_business",[null],"U_frequenza","U_categoria1pg","U_livcliente",[null],"U_id_categoria_ass",[null],"U_regione",[null],"U_canale_1pg",["Super 800-2500"],"U_fine_sellin",[null],"U_inizio_sellout",[null],"data_agg","Transfered",["N"],"U_KPI_OK",[null],"U_cm_cat",[null],"U_cm_ul",[null],"U_ul_facing",[null],"U_ul_sos",[null],"U_brandblock",[null],"U_ul_vaschette",[null],"U_ul_visibilita",[null],"U_display",[null],"U_esp_cat",[null],"U_extra_disp_perm",[null],"U_Notifica",["0"],"U_azione",[null],"U_ID_Mail",[null]],["07431370856073626",0,0,0,0,"10-06-2013 11:21:13",0,0,0,0,0,-1,743,0,743,0,"One pager Dressings 2013 SUD",4,1438,0,0,0,-3,0,0,76420,0,0,0,0,0,0,4,11,0,0,0,0,0,0,"10-06-2013 11:21:13",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],["07431370856123482",0,0,0,0,"10-06-2013 11:22:03",0,0,0,0,0,-1,743,0,743,0,"One Pager Hand Dish Wash",4,945,0,0,0,-3,0,0,76117,0,0,0,0,0,0,4,4,0,0,0,0,0,0,"10-06-2013 11:22:03",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],["07431370857111864",0,0,0,0,"10-06-2013 11:38:31",0,0,0,0,0,-1,743,0,743,0,"One Pager Hair SUD - SUPER 801 - 2500",4,1934,0,0,1,-3,0,0,35498,0,0,0,0,0,0,4,9,0,0,0,0,0,0,"10-06-2013 11:38:31",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]]"}

The problem is the world Wash in position 3359
The deflate works if h is deleted or substitute with an other char, if the wolrd is swapped like "One Pager Hand Dish Wash" ---> "Wash One Pager Hand Dish"
or if at least 5 spaces are put beetween s and h