淘宝客户端通过 squid 代理+ecap 请求错误问题

正常 http 请求通过 squid 代理时可以正常响应。

现在淘宝客户端如果是通过 squid 代理可以正常使用。但是，我写了一个第三方的插件 ecap, 淘宝客户端里面的图片就无法显示了，抓包看到了一对乱码请求！

...F........./z...i|..X..Q&.$[o..[8.....y........6..c.....;..K....8K.K#.Th[.}.. 4.E=q. +...._$:..v<U>Q....V....P.&d...B..[.'.!y....EM..f...2dA.!~...J.$......!bz*.Z.>..+D|..,.&.2.,....../..5........H.T.....[%....C.I@.....Q.G.=..Y. W=+.G....3.Ez...{.....;1#dH..2...W.m.i....#;..q.p..gL..v.z..5......Y.....-........C....(...4mQ.-....4+. .. H..-.RD?.U......|..v.^N@...DJ..........?.L?.. ...B@.xY. x.$..>y....t.@=.Td.....a...J....M%Dl...........UYr.aJ'..S_..~E.Lr.X.....cwD..Wi.;W-. .{v.c.c.a...m....s8......*.&...\r..~2)........!...0..1.w.R0../. ....0A....8.m.'k%.......J.pTs..R.|.r.R....|.g...._ ..u....Q... )...L?p...... KV..k...r0....@....x.q.......Fa) u ~..{ ./..o....N....#_.........!...".cT2......9jZ...t. G>.......bJ %iX.cO.e..A^.{.qf.56..t..I.+.G=(u.1...j}.j. ..j.......J..w..X.;Q.e..K....|.c..YG.}.|.v..8 ....UG}.u...Z5...C_.......HTTP/1.1 400 Bad Request Server: squid/3.5.9 Mime-Version: 1.0 Date: Wed, 15 Mar 2017 06:50:49 GMT Content-Type: text/html;charset=utf-8 Content-Length: 2262 X-Squid-Error: ERR_INVALID_REQ 0 Content-Language: en X-Cache: MISS from Test X-Cache-Lookup: NONE from MagicWiFi:3128 Connection: close

<html><head> <meta type="copyright" content="Copyright (C) 1996-2015 The Squid Software Foundation and contributors"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>ERROR: The requested URL could not be retrieved</title> <style type="text/css"> </body></html>