make checking work for tinyMCE as used on languagetool.org
make checking work for tinyMCE as used on languagetool.org

languagetool-org/languagetool-browser-addon,languagetool-org/languagetool-browser-addon,languagetool-org/languagetool-browser-addon,languagetool-org/languagetool-browser-addon