Template:COinS safe/doc

Description
It is to indicate whether it can be safely used in citation templates. By default, it indicates the template is safe for use.

When the template is set as "not safe", the page is placed into.

Usage
To indicate a template which can be safely used in citation templates:

To indicate a template that should NOT be used in citation templates:

To add extra info after the standard message: addtext

Explain COinS issues
Citation templates such as and  generate COinS metadata. If a template is used in a citation template field, then it may inject HTML into the metadata.

Compare the rendered HTML for cite book with author using no template and using smallcaps.

The author metadata is in the rft.aulast field. In this case, it is percent-encoded and is rendered as

Reference management software will interpret the entire span as the author name.