2.1.94 [HTML5:2014] Section 4.11.1.1 Scripting languages

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V0214: Some MIME types are not recognized

The specification states:

 4.11.1.1 Scripting languages
     ...
     The following lists the MIME type strings that user agents must recognize, and the 
     languages to which they refer:
  
         "application/x-ecmascript"
         ...
         "text/javascript1.0"
         ...
         "text/javascript1.4"
         "text/javascript1.5"
         ...
         "text/x-ecmascript"

All document modes (All versions)

The following MIME types are not recognized:

    "application/x-ecmascript"

    "text/javascript1.0"

    "text/javascript1.4"

    "text/javascript1.5"

    "text/x-ecmascript"

V0215: Script language type recognition is based on the type/language attribute

The specification states:

 ... Scripting languages
     ...
     When examining types to determine if they represent supported languages, user agents 
     must not ignore MIME parameters. Types are to be compared including all parameters.

All document modes (All versions)

Determination on whether a script is represented in a supported language is based on the type/language attribute. The attribute is validated against a list of recognized script types.