CefResourceManager AddArchiveProvider failed after the browser was created - c++

Question

i init CefResourceManager pointer in my handler class constructor,and call SetupResourceManager function immediately.
cefclient_handler::cefclient_handler(CefRefPtr<QCefPage> listner, CefRefPtr<CefRenderHandler> osrenderHandler)
: is_closing_(false), clientListner_(listner), osrenderHandler_(osrenderHandler){
resource_manager_ = new CefResourceManager();
SetupResourceManager(resource_manager_ ,"file:///D:/test/test.zip")
}
void SetupResourceManager(CefRefPtr<CefResourceManager> resource_manager,std::string resource_dir) {
if (!CefCurrentlyOn(TID_IO)) {
// Execute on the browser IO thread.
CefPostTask(TID_IO, base::Bind(SetupResourceManager, resource_manager, resource_dir));
return;
}
resource_manager->AddArchiveProvider("https://***.net", resource_dir,"", 0,
std::string());
}
it works well.
But in the current business needs, when the handler is initialized, the resource (zip file) is not ready, so I try to call CreateBrowser first, and then call AddArchiveProvider in my handler class when the resource file is downloaded, like this.
void cefclient_handler::AddArchiveProvider(const std::string& url_path, const std::string& archive_path, const std::string& password, int order, const std::string& identifier)
{
if (!CefCurrentlyOn(TID_IO)) {
// Execute on the browser IO thread.
CefPostTask(TID_IO, base::Bind(&cefclient_handler::AddArchiveProvider, this, url_path, archive_path, password, order, identifier));
return;
}
if (resource_manager_.get())
{
resource_manager_->AddArchiveProvider(url_path, archive_path, "", 0,
std::string());
}
}
It doesn't work anymore.