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Links with URIs of schemes other than http/https are broken

I would like to link to chrome://net-internals/ (a local Google Chrome page for debugging purposes), but it won't let me do that:

  1. When I click the link button, it results in chrome://net-internals/ (notice the http:// prepended to the actual URL).

  2. When just pasted, it doesn't show up as a link: chrome://net-internals/

I understand that there are hardly any links of this type, but since this format (foo://bar/) is clearly a link, could such links be parsed as actual links?

  • 1
    Right. This is a security feature of Google Chrome, and many other browsers. And I have no idea what this has to do with the Stack Overflow website. Are you trying to link to this page from one of your Stack Overflow answers? If so, there's no need. Just use the inline code formatting option to display the link text. Jul 4, 2011 at 12:40
  • 3
    @Cody Gray: I thought Markdown was not parsing it. If it's due to Google Chrome, then I'll forget about it. From my point of view a link would be more user-friendly, but I'll leave it as text.
    – pimvdb
    Jul 4, 2011 at 12:45
  • 1
    Oh, perhaps I misunderstood. Yeah, Markdown is probably appending an http:// and the link probably isn't clickable. But even if that was fixed, I don't think Chrome will let you click links to these pages anyway. It's a logical security feature to me: keep the web separate from the non-web. I don't think it poses a significant detriment to answer quality if you have to include this as text, rather than a link. People can figure out to type it in the address bar. Jul 4, 2011 at 12:46
  • 1
    @Cody Gray: You're completely correct. I removed the http:// manually on this page, and although the link was still there, it wasn't clickable.
    – pimvdb
    Jul 4, 2011 at 12:48

1 Answer 1


Links that point to targets that don't have schemes matching https?|ftp are removed as part of the post-Markdown HTML sanitizing process, so as this is very much intentional I don't see it being changed.

If it were allowed Chrome would keep the link as-is, though for the security reasons that Cody Gray mentioned it would be pointless anyway, as clicking the link would just generate a security exception.

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