The JavaScript exception ""use strict" not allowed in function" occurs when a "use strict" directive is used at the top of a function with default parameters, rest parameters, or destructuring parameters.

Method definition is a shorter syntax for defining a function property in an object initializer. It can also be used in classes.

The JavaScript exception "nothing to repeat" or "invalid quantifier in regular expression" occurs when a quantifier in a regular expression is applied to nothing or applied to an assertion.

The overline-thickness attribute represents the ideal thickness of the overline. The overline thickness is expressed in the font's coordinate system.

The JavaScript exception "parameter after rest parameter" occurs when a rest parameter is followed by anything else in a parameter list, including another rest parameter, a formal parameter, or a trailing comma.

The path attribute has two different meanings, either it defines a text path along which the characters of a text are rendered, or a motion path along which a referenced element is animated.

The orient attribute indicates how a marker is rotated when it is placed at its position on the shape.

The JavaScript exception "tagged template cannot be used with optional chain" occurs when the tag expression of a tagged template literal is an optional chain, or if there's an optional chain between the tag and the template.

The limitingConeAngle attribute represents the angle in degrees between the spot light axis (i.e. the axis between the light source and the point to which it is pointing at) and the spot light cone. So it defines a limiting cone which restricts the region where the light is projected. No light is projected outside the cone.

The lighting-color attribute defines the color of the light source for lighting filter primitives.