Is there some way to add the defer attribute easily using the javascript_include_tag helper

Question

Editorial Team

Asked: June 5, 20262026-06-05T12:51:39+00:00 2026-06-05T12:51:39+00:00

Is there some way to add the defer attribute easily using the javascript_include_tag helper in Rails?

I.e., is there some easy way to turn

<%= javascript_include_tag "blah.js" %>

into

<script defer src="blah.js"></script>

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Editorial Team · Answer 1 · 2026-06-05T12:51:40+00:00

Editorial Team

<%= javascript_include_tag "blah.js", :defer => "defer" %>

This will get you (in development):

<script defer="defer" src="/assets/blah.js" type="text/javascript"></script>

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