[4.x]: ErrorHandler doesn't render error and content-type while in devMode

[jordikroon]

What happened?

Description

Twig Syntax errors result in errors not as HTML

Steps to reproduce

1. Add a twig template file
2. Add {{ dump('test') } (note missing closing bracket)

Expected behavior

Actual behaviour

Proposed fix

Since the error that is catched in TemplateResponseFormatter is only limited to RuntimeError, try use the parent class Error.

However I don't quite understand why the Format template is used. Because the format is "template", it results in the default behaviour of not having a content-type, and the parent class (line 192) not rendering the error. This is due to the fact that the format is not HTML or JSON.

Craft CMS version

4.0.0.1

PHP version

8.0

Operating system and version

No response

Database type and version

No response

Image driver and version

No response

Installed plugins and versions

None

[brandonkelly]

Thanks for reporting that! Fixed for the next release.

[brandonkelly]

Craft 4.0.1 is out now with the fix for this.

[jerome2710]

@brandonkelly I am currently experiencing this issue in 4.0.3 again as well.

My error is actually not an \Exception, but a \Throwable because of a TypeError in one of our plugins (under construction). Hence it is not catched by the TemplateResponseFormatter.

[brandonkelly]

@jerome2710 Alright, that’s fixed for the next release.

To get the fix early, change your craftcms/cms requirement in composer.json to "dev-develop as 4.0.3" and run composer update.

[brandonkelly]

Craft 4.0.4 is out now with that fix.