# 4.11.2 01/16/2025 Bugfixes for 4.11.1 * Support #13173: Add MIME Type *.mjs / JavaScript module * Bug #12951: Layout fails expanding a WPanel with animation * Feature #10903: Add more MIME types to src/http/MimeTypes.C? * Bug #13042: Disallow content type sniffing * Improvements #6584: Make X-Frame-Options a configuration option * Improvements #12945: Make WIconPair take WIcons as well * Improvements #13187: Allow custom headers to be configured in the config file * Improvements #13131: Locale name changes * Bug #12860: Incomplete rendering of WDialog * Bug #12866: Wt 4.10.4 has a 2 second delay with bootstrap init on some recent versions of Firefox * Bug #13063: Widget created in signal handler: cannot adjust information after creation without segfault * Bug #13082: WStackedWidget::setCurrentIndex does not correctly propagate visibility * Bug #13366: Correct image url for widget gallery bots * Bug #12934: StdGridLayoutImpl2.js: allow a widget's maximum size to influence the mouse drag behaviour * Bug #12935: StdGridLayoutImpl2.js: correct setSpacing drag handle side-effect * Bug #13300: Correct windows state management * Improvements #8508: Use C++20's time zone support in std::chrono by default if supported. * Improvements #13140: Allow for the WFileDropWidget to disable its click event