adjust canHandle() for AsyncEventSource (me-no-dev#474)

Author: kaegi

src/AsyncEventSource.cpp

@@ -307,8 +307,9 @@ size_t AsyncEventSource::count() const {
 }
 
 bool AsyncEventSource::canHandle(AsyncWebServerRequest *request){
-  if(request->method() != HTTP_GET || !request->url().equals(_url) || !request->isExpectedRequestedConnType(RCT_EVENT))
+  if(request->method() != HTTP_GET || !request->url().equals(_url)) {
     return false;
+  }
   request->addInterestingHeader("Last-Event-ID");
   return true;
 }