<link>.as says default is the empty string, but we don't normally call out default values

[annevk]

IDL:

  [CEReactions] attribute DOMString as; // (default "")

Definition of the as content attribute which the as IDL attribute reflects:

The as attribute specifies the potential destination for a preload request for the resource given by the href attribute. It is an enumerated attribute. Each potential destination is a keyword for this attribute, mapping to a state of the same name.

Definition of potential destination:

A potential destination is "fetch" or a destination which is not the empty string.

How does this work?

cc @yoavweiss

[domenic]

I think the comment is a bit confusing, but, it's still valid.

If a reflecting IDL attribute is a DOMString attribute whose content attribute is an enumerated attribute, and the IDL attribute is limited to only known values, then, on getting, the IDL attribute must return the conforming value associated with the state the attribute is in (in its canonical case), if any, or the empty string if the attribute is in a state that has no associated keyword value or if the attribute is not in a defined state (e.g. the attribute is missing and there is no missing value default). On setting, the content attribute must be set to the specified new value.

[annevk]

Ah indeed. Okay.

[domenic]

We may want to remove the comment anyway, since we don't generally add that in most places, so it feels misleading to call out as specifically.

[annevk]

To fix this issue, remove // (default "") from the IDL fragment in the source resource.