HTTP Error Responses by MIME Type

README

This is a collection of templates, that depict HTTP error messages in different MIME types.

Each template expects the parameters

* {CODE} - the numeric HTTP error code

* {PHRASE} - the reason phrase, e.g., "Not Found" for 404

and in some cases the parameter

* {URL} - the requested URL where the error occurred. This value MUST be quoted adeptly for each template.

error.css

/* {CODE} {PHRASE} */
body {}

error.js

if (this.console && this.console.error) {
  console.error('{CODE} {PHRASE}\nLocation: {URL}');
}

error.json

{
  "error": true,
  "errno": {CODE},
  "errmsg": "{PHRASE}",
  "errlocation": "{URL}"
}

error.mathml

<?xml version="1.0" encoding="UTF-8" ?>
<math xmlns="http://www.w3.org/1998/Math/MathML">
  <merror>{CODE} {PHRASE}</merror>
</math>

error.png.base64

iVBORw0KGgoAAAANSUhEUgAAAGQAAABkAQMAAABKLAcXAAAAA1BMVEX/AAAZ4gk3AAAAE0lEQVQYGWMYBaNgFIyCUUBXAAAFeAAB3EUCGwAAAABJRU5ErkJggg==

error.rdf

<?xml version="1.0" encoding="UTF-8" ?>
<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
     xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
     xmlns:http="http://www.w3.org/2006/http#">
  <http:Response rdf:ID="response">
    <http:httpVersion>1.1</http:httpVersion>
    <http:statusCodeNumber>{CODE}</http:statusCodeNumber>
    <http:sc rdf:resource="http://www.w3.org/2008/http-statusCodes#statusCode{CODE}" />
    <http:reasonPhrase>{PHRASE}</http:reasonPhrase>
    <http:headers rdf:parseType="Collection">
      <http:MessageHeader>
        <http:fieldName>Location</http:fieldName>
        <http:hdrName rdf:resource="http://www.w3.org/2008/http-headers#Location"/>
        <http:fieldValue>{URL}</http:fieldValue>
      </http:MessageHeader>
    </http:headers>
  </http:Response>
</RDF>

error.svg

<?xml version="1.0" encoding="UTF-8" ?>
<svg version="1.0" xmlns="http://www.w3.org/2000/svg">
  <rect x="0" y="0" width="100%" height="100%" fill="#F00" />
  <text x="30" y="30" font-size="20" font-weight="bold" fill="white">{CODE} {PHRASE}</text>
  <text x="30" y="60" font-size="16" font-weight="bold" fill="white">
    The error occurred while requesting <tspan style="font-family: monospace">{URL}</tspan>.
  </text>                                 
</svg>

error.xsl

<?xml version="1.0" encoding="UTF-8" ?>
<stylesheet version="1.0" xmlns="http://www.w3.org/1999/XSL/Transform">
  <template match="/">
    <message terminate="yes">{CODE} {PHRASE}</message>
  </template>
</stylesheet>