Thread:Talk:ResourceLoader/Version 2 Design Specification/Top-loaded site scripts/reply (2)

On Wikimedia wikis, all site JS is loaded after a delay since 1.17 was launched. Everything from slight changes in things like tab appearance ( only displays "Main Page" instead of "Article" a while after the page loads) to major DOM modifications (which is a necessity on some wikis) do not work optimally, causing the page to click/pop/jump into showing the right content after a delay instead of the way it used to be, with essentially zero delay in which the wrong content is displayed.