javascript - Non-blocking function calls with Boost -

i have function called javascript (browser):

stdmethodimp cactivexobject::writetorest(bstr data, bstr* retstr) {     std::string sdata = converttostring(data);     restclient restclient;     restclient::response resp = restclient.post("somewhere.com", "/post", sdata);     ccombstr bstrresult(resp.body.c_str());     *retstr = bstrresult.detach();     return s_ok; } 

this method called javascript this:

for (var = 0; < rowelems.length; i++) {      var resp = activexobject.writetorest(_rowtodata(rowelems[i])); } 

the function works fine, unless call rest or server gets slow, , javascript (browser), i.e. internet explorer show "not responding" error box. browser shuts down. if remove "post" call , log data, there's no such error this.

sometimes writetorest called twice or 3 times.

what possible solution can make c++ code?