Details
Major Description
While interacting with the current 2.6 Showcase application I recently noticed that+ the "Home" glyph icon was not displaying correctly+. Instead of the icon, the page displayed the body content literally in the browser. Checking the page source (view source in browser) it turns out the body content of the tag was HTML-escaped. I double-checked and this does not happen to Struts 2.5.21 (snapshot) or older 2.6 Showcase apps.
This behaviour might affect other tags, but it was noticed and confirmed with "s:a" (the JSP anchor tag).
After some digging (using older commits from GitHub and building the 2.6 Showcase app from them) it appears the automatic body escaping did not occur prior to January 2nd 2019, but was introduced with one of the multiple commits applied on January 3rd 2019.
It could be an interaction between earlier mid-December 2018 commits that changed the Freemarker configuration version in FreemarkerManager (Configuration.VERSION_2_3_0) to a new one (Configuration.VERSION_2_3_28), combined with the January 3rd commits. Couldn't find the exact cause, but perhaps one of the Struts Team might be able to do so.
Given the original/old behaviour it seems that auto-escaping the tag body might be a bug.
