Sometimes when messing locally with different things, a page might look broken.

Then I look at the response for a request like:

/load.php?debug=false&lang=en&modules=mediawiki.skinning.interface%7Cskins.vector.styles&only=styles&skin=vector&*

And it's near impossible to figure out that something is wrong. In this case, module "mediawiki.skinning.interface" could not be found.

debug=true makes no difference in this regard.

Had it been a regular request that isn't only=styles, it would've contained :

mw.loader.state({"mediawiki.skinning.interface":"missing"});

We should probably treat this the same as we do in case of exceptions and other errors in stylesheet requests, namely by prepending a comment to the response body.

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Severity: normal