This is the partial file’s contents from bootstrap
<!--[if lt IE 9]> <script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script> <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script> <![endif]-->
There is no other line in that partial.
This particular partial gets called from index.html
While other partials render well, this partial gets rendered as blank lines.
In other words this partial is treated as non-existent.
Thanks for the community for earlier helps.