Allow adding extra attributes to scripts

[moetayuko]

This is an enhancement or feature.

Summary

site.footer_scripts is not enough in case we wanna defer or
asynchronously load custom scripts

Context

#2575

[iBug]

I wonder if there's a way to keep the compatibility with the status quo. This is a breaking change so it'd be better if there's a "transition period".

Also, your implementation of inlined site.footer_scripts doesn't match that of your updated documentation. With

{% if site.footer_scripts %}
  {% for script in site.footer_scripts %}
    {% unless script.inline %}

The config should have been like this:

footer_scripts:
  - inline: "whatever"

Perhaps you wanted it like this:

{% if site.footer_scripts %}
  {% if site.footer_scripts.inline %}
  {% else %}
    {% for script in site.footer_scripts %}

[stale]

This issue has been automatically marked as stale because it has not had recent activity.

If this is a bug and you can still reproduce this error on the master branch, please reply with any additional information you have about it in order to keep the issue open.

If this is a feature request, please consider whether it can be accomplished in another way. If it cannot, please elaborate on why it is core to this project and why you feel more than 80% of users would find this beneficial.

This issue will automatically be closed in 7 days if no further activity occurs. Thank you for all your contributions.