[wvenable]

> no not at all extensible isn't the same as lenient

I never said it was. But lenient provides for extensibility that isn't planned for. The entire evolution of the web is based on that. Standards that were too strict or too inflexible have been long forgotten by history.

That's not to say that isn't the source of security vulnerabilities and bugs but that doesn't negate the point.

[dathinab]

that is just not true

web is mostly based on standards which always have been supper lenient, messy und had massive gaps of unclearity mainly because it was more "lets somehow standarize what browsers already do" then anything else

through I guess you could say that the degree to which you can polyfill JS is more lenient then many thing is good and that did help with extensibility,

[wvenable]

You say that's not true but then you don't contradict what I'm saying. How were browsers able to do anything, while maintaining backwards compatibility, that needed standardizing later?