additional space for contentlen

Author: mcspr

code/espurna/libs/Http.h

@@ -233,7 +233,8 @@ class AsyncHttp {
                 strlen_P(HTTP_REQUEST_TEMPLATE)
                 + http->method.length()
                 + http->host.length()
-                + http->path.length();
+                + http->path.length()
+                + 32;
             std::unique_ptr<char[]> headers(new (std::nothrow) char[headers_len + 1]);
 
             if (!headers) {