Github user zwoop commented on a diff in the pull request:

    https://github.com/apache/trafficserver/pull/798#discussion_r71084358
  
    --- Diff: plugins/experimental/esi/lib/Variables.cc ---
    @@ -357,9 +357,26 @@ Variables::_parseCookieString(const char *str, int 
str_len)
       AttributeList cookies;
       Utils::parseAttributes(str, str_len, cookies, ";,");
       for (AttributeList::iterator iter = cookies.begin(); iter != 
cookies.end(); ++iter) {
    -    _insert(_dict_data[HTTP_COOKIE], string(iter->name, iter->name_len), 
string(iter->value, iter->value_len));
    -    _debugLog(_debug_tag, "[%s] Inserted cookie with name [%.*s] and value 
[%.*s]", __FUNCTION__, iter->name_len, iter->name,
    -              iter->value_len, iter->value);
    +    std::string v = iter->name;
    +    size_t eq     = v.find("=");
    +
    +    if (eq != std::string::npos) {
    +      v = v.substr(0, eq);
    +    }
    +
    +    bool found = false;
    +    for (Utils::HeaderValueList::iterator lz = _whitelistCookies.begin(); 
lz != _whitelistCookies.end(); ++lz) {
    +      std::string c = *lz;
    --- End diff --
    
    Maybe this is the norm for the esi, but why create this intermediary 
std::string c? That seems inefficient and unnecessary ? Can't you just use the 
*lz ?


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