[jira] [Created] (TIKA-3686) CSS file detected as JavaScript (application/javascript)

["Marius Dumitru Florea (Jira)" <ji...@apache.org>]

Marius Dumitru Florea created TIKA-3686:
-------------------------------------------

             Summary: CSS file detected as JavaScript (application/javascript)
                 Key: TIKA-3686
                 URL: https://issues.apache.org/jira/browse/TIKA-3686
             Project: Tika
          Issue Type: Bug
          Components: detector
    Affects Versions: 2.0.0-ALPHA
            Reporter: Marius Dumitru Florea


The following CSS file [https://github.com/techlab/jquery-smartwizard/blob/v5.1.1/dist/css/smart_wizard_all.min.css] is detected as {{application/javascript}} using:

{noformat}
TikaUtils.detect(InputStream stream, String name)
{noformat}

The reason seems to be that the CSS file starts with:

{noformat}
/*!
 * jQuery
{noformat}

which matches the "jQuery" entry from [tika-mimetypes.xml|https://github.com/apache/tika/blob/2.3.0/tika-core/src/main/resources/org/apache/tika/mime/tika-mimetypes.xml#L348] used by Tika's {{MimeTypes}} detector.

This is a regression introduced by https://github.com/apache/tika/commit/97699598f000139b1222b785d634b3c8a8e216c7 in TIKA-1141 (2.0.0-ALPHA).

The implications are serious if the mime type returned by Tika is used to set the content type on the HTTP request returning the CSS file to the browser: the browser ignores the CSS.

FTR, in my case the CSS file is not served directly from the file system but from a WebJar (in this case https://search.maven.org/artifact/org.webjars.npm/smartwizard/5.1.1/jar ) and we're using Tika to determine the type of files requested from the WebJars.



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