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I would like to be able to add the file:// protocol to the list of filter_protocols so that we can add links to shared company files on a mapped drive from within our intranet website, but I'm not sure how to do this. Right now, it is apparently not included, according to Link Module Overview. Is there a way to manually configure this list in order to add file://?

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1 Answer 1

Reset to default
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You can override that in a container services file.

For example, create/edit /sites/default/services.yml, and add/alter the following lines:

parameters:
  filter_protocols:
    - http
    - https
    - ftp
    - news
    - nntp
    - tel
    - telnet
    - mailto
    - irc
    - ssh
    - sftp
    - webcal
    - rtsp
    - file

and make sure you have this line uncommented/added to settings.php:

$settings['container_yamls'][] = $app_root . '/' . $site_path . '/services.yml';
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  • Hmm. I tried that and it unfortunately did not work for me. In my sites/default/ directory i have two files besides my newly created services.yml file and the preexisting settings.php file: default.services.yml and default.settings.php. I edited both of these default files in the same way you described above for the non-default settings.php and services.yml. When I click on my html link on my web-page, <a href="file://C:/Users/AdamNoack/Desktop/test1.docx">local file</a> nothing happens. I have tried many different variations of this a tag and nothing seems to work.
    – Adam Noack
    Commented Jun 18, 2018 at 15:51
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    Is it on a local domain? Some browser security policies disallow embed/redirect to file:// protocol for local domains. If that's the problem it's not one Drupal can help to solve; Drupal's only involvement is rendering the file:/// URL in the first place
    – Clive ♦
    Commented Jun 18, 2018 at 15:59
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    Oh you're right! It now at least works in IE. Doesn't work in chrome though. Thank you!
    – Adam Noack
    Commented Jun 18, 2018 at 16:08
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    It works in chrome with this chrome extension: enable local file links
    – Adam Noack
    Commented Jun 18, 2018 at 18:32
  • +1 this is an awesome answer. For my project I needed to have WhatsApp symbol as a menu link within a standard Drupal menu. fontawesome_menu_icons solved the visual - provided a WhatsApp symbol, along with menu_link_attributes for styling. 1 / 2
    – therobyouknow
    Commented Dec 15, 2020 at 0:52

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