Explore/Implement an official XML Schema for Storybook about sbplus-v3 HOT 3 CLOSED

After half-day of research, I don't think this is possible with the validator at https://validator.w3.org/. It always displayed the Schema Error: Cannot find preset schema for namespace...error message. I even tested an XML file created by W3C and got the same error message. Plus, this W3C validator complains when the XML character encoding is not US-ASCII (basic English, no accent characters, etc.)

I created the schema for the sbplus.xml, https://media.uwex.edu/app/storybook_plus_v3/sbplus.xsd. I tested this schema and sbplus.xml files with other XML validators (https://www.freeformatter.com/xml-validator-xsd.html, http://www.utilities-online.info/xsdvalidation/, etc.), and they all worked.

My conclusion is that W3C validator no longer works (or outdated) for XML validation. The error message is a bug that W3C no longer bother to fix.

from sbplus-v3.

Add the following attributes to test against the schema:
<storybook ... xmlns="https://media.uwex.edu/app/storybook_plus_v3/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://media.uwex.edu/app/storybook_plus_v3/ https://media.uwex.edu/app/storybook_plus_v3/sbplus.xsd">

from sbplus-v3.

XML error message screen updated with a new message. Three XML validator services are listed as alternatives. All of them can validate XML by URL, upload, or direct input. W3C validator link removed as it is no longer validate XML.

from sbplus-v3.