CSS Error Source Element

[jabcreations]

Often when a CSS error occurs such as an invalid property name or value there is no reference to little-to-no meaningful context.

• Which element?
• Which property, value, etc?
• Was this inline or defined in a style sheet?

I propose browser vendors work to improve CSS error reporting so these issues can be reported.

Additionally while it may not be considered directly related I think it would be a great idea to allow CSS error reporting. How often do many of us encounter can-not-reproduce-error instances? If we have a JavaScript API where a CSS error report event existed we could know something went wrong, determine what went wrong and actually fix it in spite of being unable to directly reproduce the error ourselves.