# Invoking a Hook link in the context of roamresearch website

**URL:** <https://discourse.hookproductivity.com/t/invoking-a-hook-link-in-the-context-of-roamresearch-website/1081>\
**Category:** Discussion & Help\
**Created:** [December 21, 2019, 9:48am UTC](https://discourse.hookproductivity.com/t/invoking-a-hook-link-in-the-context-of-roamresearch-website/1081 "2019-12-21T09:48:02Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![LucB](https://discourse.hookproductivity.com/user_avatar/discourse.hookproductivity.com/lucb/32/2228_2.png) [@LucB](https://discourse.hookproductivity.com/u/LucB)\
**Post date:** [December 21, 2019, 5:14pm UTC](https://discourse.hookproductivity.com/t/invoking-a-hook-link-in-the-context-of-roamresearch-website/1081/2 "2019-12-21T17:14:18Z")

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Welcome to the Hook Productivity Forum, @jasonromney.

> [@jasonromney](#):
>
> When I try to invoke a file with a Hook link from within Roam via an external link reference in Roam, my browser displays this error message: " **hook** ’s server IP address could not be found."

could you provide a screenshot and/or a webpage URL of an external link reference causing issues in Roam?

your browser should have no knowledge of [https://hookproductivity.com](https://hookproductivity.com) unless you happen to be accessing [https://hookproductivity.com](https://hookproductivity.com) in it. To make the example simpler, could you please provide one where the same type of situation occurs with some other website, e.g., creating an external link referring to a Wikipedia page?

I’ve tried Hook in Roam research several times. One thing I notice is that they use `#` followed by path information. such as `https://roamresearch.com/#/app/<username>/page/hZh2X15UI?help` where `<username>` is a username (no angle brackets).

`#` is a reserved character in [RFC 3986 - Uniform Resource Identifier (URI): Generic Syntax](https://tools.ietf.org/html/rfc3986). In the RFC, it’s supposed to introduce a fragment. My reading is that the content after the # should be on the same page. But in their case it’s not.

I doubt this is related to the issue you’re seeing, but thought I would mention it.

(I’ve edited my prior entry and will revisit RFC 3986 later.)

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