Template:COinS safe

Usage
This template is a notice for templates that may be used in citation templates. By default, it indicates the template is safe for use as shown above.

To indicate a template that should not be used in a citation template:


 * addtext — additional text shown after the main message

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

Issue
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.