How can I share a url containing a hash # in linkedin?

Question

I need to share with linkedin a url containing a hash # like this https://example.com/#/item/49

I have already tried using # and %23 instead of hash.

<a href="https://www.linkedin.com/shareArticle?mini=true&url=https://example.com/#/item/49">share</a>
<a href="https://www.linkedin.com/shareArticle?mini=true&url=https://example.com/%23/item/49">share</a>

not working