The index search tab of helponline is case sentitive. "Table" and "table" return different results. Make it return the same results. The code is in help.js https://opengrok.libreoffice.org/xref/help/help3xsl/help.js To test, one may download the 60.tar.gz and install in a local webserver (230MB) wget https://helponline.libreoffice.org/60.tar.gz
Instead of downloading the tarball, fix it in Firefox scratchpad and put the patch here. https://developer.mozilla.org/en-US/docs/Tools/Scratchpad
gabrielchiquini committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/help/commit/?id=507d26615775cc233413cbb140dd3e7ccf971567 tdf#112370 Add case-insensitive support to index search