1. Java Script validation is turned off
2. HTML validation is turned off
I do not know what MS calls web development,
but for me it is JS, HTML, and CSS....
Also Error List and other windows must be opened manually.
I do not like this "damned default",
so if hou click CTRL+SHIFT+J as mad
and no errors (you sure have some) appear in your Error List
now you know why.
detailed compare of profile settings,
and maybe exported setting for
more realistic web code only development.