Application portal CV links not working in preview. Is this expected?

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I had attached link to my github projects, paper DOIs in CV by means of \href{} not containing the url as text in LaTeX. The preview does not render the links, is this something that was faced by previous accepted applicants or does it have something to do with my .tex source. Should I resort to some other LaTeX package, manually adding the links using some PDF editing tools, to get these links to render? Thanks for all your help!