Injectable defs are not considered public API, so the property
that contains them should be prefixed with Angular's marker
for "private" ('ɵ') to discourage apps from relying on def
APIs directly.
This commit adds the prefix and shortens the name from
ngInjectableDef to "prov" (for "provider", since injector defs
are known as "inj"). This is because property names cannot
be minified by Uglify without turning on property mangling
(which most apps have turned off) and are thus size-sensitive.
PR Close #33151
Sanitization
This folder contains sanitization related code.
History
It used to be that sanitization related code used to be in @angular/platform-browser since it is platform related. While this is true, in practice the compiler schema is permanently tied to the DOM and hence the fact that sanitizer could in theory be replaced is not used in practice.
In order to better support tree shaking we need to be able to refer to the sanitization functions from the Ivy code. For this reason the code has been moved into the @angular/core.