Alias not being resolved directly within an attribute in Twig templates

Question

Is this a bug or is this me ? (I'm a new to craft)

When using the @web alias directly within an attribute in a Twig template, the alias doesn't seem to be resolved to its corresponding URL. Instead, the literal string @web is rendered in the final output.

Steps to Reproduce:

1. Define the @web alias in general.php:

->aliases([
    '@web' => 'http://craftsite.ddev.site/'
])

2.Use the alias directly in a Twig template's attribute:

<link rel="stylesheet" href="@web/css/app.css">

3. View the rendered HTML. The output is:

<link rel="stylesheet" href="@web/css/app.css">

The expected output should be:

<link rel="stylesheet" href="http://craftbites.ddev.site/css/app.css">

Workaround:

Resolving the alias to a variable first and then using that variable in the attribute resolves the issue:

{% set baseUrl = alias('@web') %}
<link rel="stylesheet" href="{{ baseUrl }}/css/app.css">

Environment:

• Craft version: 4.5
• PHP version: 8.1

Answer 1

Pretty sure you have to resolve the alias with twig, you could short it down to just:

<link refl="stylesheet" href="{{ alias('@web') }}/css/app.css">

But you also dont need the full url for the css file:

<link refl="stylesheet" href="/css/app.css">

Should work just fine too.