When acessing admin siteaccess the below URL is called which results in "Request-URI too large" error response.

Attached is the screenshoot from firebug.

P.S. On some servers this triggers the server's security mechanism that completely disables access from the user's IP adress.

Here's the URL:

http://somehostname.com/tinyMCE.addI18n(%20%7B%22-eng-US%22:%7B%22common%22:%7B%22edit_confirm%22:%22Do%20you%20want%20to%20use%20the%20WYSIWYG%20mode%20for%20this%20textarea?%22,%22apply%22:%22Apply%22,%22insert%22:%22Insert%22,%22update%22:%22Update%22,%22cancel%22:%22Cancel%22,%22close%22:%22Close%22,%22browse%22:%22Browse%22,%22class_name%22:%22Class%22,%22not_set%22:%22--%20Not%20set%20--%22,%22clipboard_msg%22:%22Copy/Cut/Paste%20is%20not%20available%20in%20Mozilla%20and%20Firefox.Do%20you%20want%20more%20information%20about%20this%20issue?%22,%22clipboard_no_support%22:%22Currently%20not%20supported%20by%20your%20browser,%20use%20keyboard%20shortcuts%20instead.%22,%22popup_blocked%22:%22Sorry,%20but%20we%20have%20noticed%20that%20your%20popup-blocker%20has%20disabled%20a%20window%20that%20provides%20application%20functionality.%20You%20will%20need%20to%20disable%20popup%20blocking%20on%20this%20site%20in%20order%20to%20fully%20utilize%20this%20tool.%22,%22invalid_data%22:%22Error:%20Invalid%20values%20entered,%20these%20are%20marked%20in%20red.%22,%22more_colors%22:%22More%20colors%22},%22validator_dlg%22:

{%22required%22:%22"%3Clabel%3E"%20is%20required%20and%20must%20have%20a%20value%22,%22number%22:%22"%3Clabel%3E"%20must%20be%20a%20valid%20number%22,%22int%22:%22"%3Clabel%3E"%20must%20be%20a%20valid%20integer%20number%22,%22url%22:%22"%3Clabel%3E"%20must%20be%20a%20valid%20absolute%20url%20address%22,%22email%22:%22"%3Clabel%3E"%20must%20be%20a%20valid%20email%20address%22,%22size%22:%22"%3Clabel%3E"%20must%20be%20a%20valid%20css%20size/unit%20value%22,%22html_id%22:%22"%3Clabel%3E"%20must%20be%20a%20valid%20html%20element%20id%22,%22min%22:%22"%3Clabel%3E"%20must%20be%20higher%20then%20%3Cmin%3E%22,%22max%22:%22"%3Clabel%3E"%20must%20be%20lower%20then%20%3Cmax%3E%22}

,%22contextmenu%22:

{%22align%22:%22Alignment%22,%22left%22:%22Left%22,%22center%22:%22Center%22,%22right%22:%22Right%22,%22full%22:%22Full%22}

,%22insertdatetime%22:

{%22date_fmt%22:%22%Y-%m-%d%22,%22time_fmt%22:%22%H:%M:%S%22,%22insertdate_desc%22:%22Insert%20date%22,%22inserttime_desc%22:%22Insert%20time%22,%22months_long%22:%22January,February,March,April,May,June,July,August,September,October,November,December%22,%22months_short%22:%22Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec%22,%22day_long%22:%22Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday,Sunday%22,%22day_short%22:%22Sun,Mon,Tue,Wed,Thu,Fri,Sat,Sun%22}

,%22print%22:

{%22print_desc%22:%22Print%22}

,%22preview%22:

{%22preview_desc%22:%22Preview%22}

,%22directionality%22:

{%22ltr_desc%22:%22Direction%20left%20to%20right%22,%22rtl_desc%22:%22Direction%20right%20to%20left%22}

,%22save%22:

{%22save_desc%22:%22Save%22,%22cancel_desc%22:%22Cancel%20all%20changes%22}

,%22nonbreaking%22:

{%22nonbreaking_desc%22:%22Insert%20non-breaking%20space%20character%22}

,%22iespell%22:

{%22iespell_desc%22:%22Run%20spell%20checking%22,%22download%22:%22ieSpell%20not%20detected.%20Do%20you%20want%20to%20install%20it%20now?%22}

,%22advhr%22:

{%22advhr_desc%22:%22Horizontale%20rule%22}

,%22emotions%22:

{%22emotions_desc%22:%22Emotions%22}

,%22emotions_dlg%22:

{%22title%22:%22Insert%20emotion%22,%22desc%22:%22Emotions%22,%22cool%22:%22Cool%22,%22cry%22:%22Cry%22,%22embarassed%22:%22Embarassed%22,%22foot_in_mouth%22:%22Foot%20in%20mouth%22,%22frown%22:%22Frown%22,%22innocent%22:%22Innocent%22,%22kiss%22:%22Kiss%22,%22laughing%22:%22Laughing%22,%22money_mouth%22:%22Money%20mouth%22,%22sealed%22:%22Sealed%22,%22smile%22:%22Smile%22,%22surprised%22:%22Surprised%22,%22tongue_out%22:%22Tongue%20out%22,%22undecided%22:%22Undecided%22,%22wink%22:%22Wink%22,%22yell%22:%22Yell%22}

,%22searchreplace%22:

{%22search_desc%22:%22Find%22,%22replace_desc%22:%22Find/Replace%22}

,%22paste%22:

{%22paste_text_desc%22:%22Paste%20as%20Plain%20Text%22,%22paste_word_desc%22:%22Paste%20from%20Word%22,%22selectall_desc%22:%22Select%20All%22,%22plaintext_mode_sticky%22:%22Paste%20is%20now%20in%20plain%20text%20mode.%20Click%20again%20to%20toggle%20back%20to%20regular%20paste%20mode.%20After%20you%20paste%20something%20you%20will%20be%20returned%20to%20regular%20paste%20mode.%22,%22plaintext_mode%22:%22Paste%20is%20now%20in%20plain%20text%20mode.%20Click%20again%20to%20toggle%20back%20to%20regular%20paste%20mode.%22}

,%22paste_dlg%22:

{%22text_title%22:%22Use%20CTRL+V%20on%20your%20keyboard%20to%20paste%20the%20text%20into%20the%20window.%22,%22text_linebreaks%22:%22Keep%20linebreaks%22,%22word_title%22:%22Use%20CTRL+V%20on%20your%20keyboard%20to%20paste%20the%20text%20into%20the%20window.%22}

,%22table%22:

{%22desc%22:%22Inserts%20a%20new%20table%22,%22row_before_desc%22:%22Insert%20row%20before%22,%22row_after_desc%22:%22Insert%20row%20after%22,%22delete_row_desc%22:%22Delete%20row%22,%22col_before_desc%22:%22Insert%20column%20before%22,%22col_after_desc%22:%22Insert%20column%20after%22,%22delete_col_desc%22:%22Remove%20column%22,%22split_cells_desc%22:%22Split%20merged%20table%20cells%22,%22merge_cells_desc%22:%22Merge%20table%20cells%22,%22row_desc%22:%22Table%20row%20properties%22,%22cell_desc%22:%22Table%20cell%20properties%22,%22props_desc%22:%22Table%20properties%22,%22paste_row_before_desc%22:%22Paste%20table%20row%20before%22,%22paste_row_after_desc%22:%22Paste%20table%20row%20after%22,%22cut_row_desc%22:%22Cut%20table%20row%22,%22copy_row_desc%22:%22Copy%20table%20row%22,%22del%22:%22Delete%20table%22,%22row%22:%22Row%22,%22col%22:%22Column%22,%22rows%22:%22Rows%22,%22cols%22:%22Columns%22,%22cell%22:%22Cell%22}

,%22autosave%22:

{%22unload_msg%22:%22The%20changes%20you%20made%20will%20be%20lost%20if%20you%20navigate%20away%20from%20this%20page.%22}

,%22fullscreen%22:

{%22desc%22:%22Toggle%20fullscreen%20mode%22}

,%22media%22:

{%22desc%22:%22Insert%20/%20edit%20embedded%20media%22,%22edit%22:%22Edit%20embedded%20media%22}

,%22fullpage%22:

{%22desc%22:%22Document%20properties%22}

,%22template%22:

{%22desc%22:%22Insert%20predefined%20template%20content%22}

,%22visualchars%22:

{%22desc%22:%22Visual%20control%20characters%20on/off.%22}

,%22spellchecker%22:

{%22desc%22:%22Toggle%20spellchecker%22,%22menu%22:%22Spellchecker%20settings%22,%22ignore_word%22:%22Ignore%20word%22,%22ignore_words%22:%22Ignore%20all%22,%22langs%22:%22Languages%22,%22wait%22:%22Please%20wait...%22,%22sug%22:%22Suggestions%22,%22no_sug%22:%22No%20suggestions%22,%22no_mpell%22:%22No%20misspellings%20found.%22}

,%22pagebreak%22:

{%22desc%22:%22Insert%20page%20break.%22}

,%22advanced%22:

{%22style_select%22:%22Styles%22,%22block%22:%22Format%22,%22paragraph%22:%22Paragraph%22,%22div%22:%22Div%22,%22pre%22:%22Literal%22,%22h1%22:%22Heading%201%22,%22h2%22:%22Heading%202%22,%22h3%22:%22Heading%203%22,%22h4%22:%22Heading%204%22,%22h5%22:%22Heading%205%22,%22h6%22:%22Heading%206%22,%22code%22:%22Code%22,%22samp%22:%22Code%20sample%22,%22dt%22:%22Definition%20term%22,%22dd%22:%22Definition%20description%22,%22bold_desc%22:%22Bold%20(Ctrl+B)%22,%22italic_desc%22:%22Italic%20(Ctrl+I)%22,%22underline_desc%22:%22Underline%20(Ctrl+U)%22,%22striketrough_desc%22:%22Strikethrough%22,%22justifyleft_desc%22:%22Align%20left%22,%22justifycenter_desc%22:%22Align%20center%22,%22justifyright_desc%22:%22Align%20right%22,%22justifyfull_desc%22:%22Align%20full%22,%22bullist_desc%22:%22Unordered%20list%22,%22numlist_desc%22:%22Ordered%20list%22,%22outdent_desc%22:%22Outdent%22,%22indent_desc%22:%22Indent%22,%22undo_desc%22:%22Undo%20(Ctrl+Z)%22,%22redo_desc%22:%22Redo%20(Ctrl+Y)%22,%22link_desc%22:%22Insert/edit%20link%22,%22unlink_desc%22:%22Unlink%22,%22image_desc%22:%22Insert/edit%20image%22,%22object_desc%22:%22Insert/edit%20object%22,%22file_desc%22:%22Insert/edit%20file%22,%22custom_desc%22:%22Insert%20custom%20tag%22,%22literal_desc%22:%22Insert%20literal%20text%22,%22pagebreak_desc%22:%22Insert%20pagebreak%22,%22disable_desc%22:%22Disable%20editor%22,%22store_desc%22:%22Store%20draft%22,%22publish_desc%22:%22Send%20for%20publishing%22,%22discard_desc%22:%22Discard%22,%22cleanup_desc%22:%22Cleanup%20messy%20code%22,%22code_desc%22:%22Edit%20HTML%20Source%22,%22sub_desc%22:%22Subscript%22,%22sup_desc%22:%22Superscript%22,%22hr_desc%22:%22Insert%20horizontal%20ruler%22,%22removeformat_desc%22:%22Remove%20formatting%22,%22custom1_desc%22:%22Your%20custom%20description%20here%22,%22charmap_desc%22:%22Insert%20special%20character%22,%22visualaid_desc%22:%22Toggle%20guidelines/invisible%20elements%22,%22anchor_desc%22:%22Insert/edit%20anchor%22,%22cut_desc%22:%22Cut%22,%22copy_desc%22:%22Copy%22,%22paste_desc%22:%22Paste%22,%22image_props_desc%22:%22Image%20properties%22,%22newdocument_desc%22:%22New%20document%22,%22help_desc%22:%22Help%22,%22clipboard_msg%22:%22Copy/Cut/Paste%20is%20not%20available%20in%20Mozilla%20and%20Firefox.Do%20you%20want%20more%20information%20about%20this%20issue?%22,%22path%22:%22Path%22,%22newdocument%22:%22Are%20you%20sure%20you%20want%20clear%20all%20contents?%22,%22toolbar_focus%22:%22Jump%20to%20tool%20buttons%20-%20Alt+Q,%20Jump%20to%20editor%20-%20Alt-Z,%20Jump%20to%20element%20path%20-%20Alt-X%22,%22next%22:%22Next%22,%22previous%22:%22Previous%22,%22select%22:%22Select%22,%22type%22:%22Type%22}

,%22advanced_dlg%22:

{%22about_general%22:%22About%22,%22about_help%22:%22Help%22,%22about_license%22:%22License%22,%22about_plugins%22:%22Plugins%22,%22about_plugin%22:%22Plugin%22,%22about_author%22:%22Author%22,%22about_version%22:%22Version%22,%22about_loaded%22:%22Loaded%20plugins%22,%22code_title%22:%22HTML%20Source%20Editor%22,%22code_wordwrap%22:%22Word%20wrap%22,%22colorpicker_title%22:%22Select%20a%20color%22,%22colorpicker_picker_tab%22:%22Picker%22,%22colorpicker_picker_title%22:%22Color%20picker%22,%22colorpicker_palette_tab%22:%22Palette%22,%22colorpicker_palette_title%22:%22Palette%20colors%22,%22colorpicker_named_tab%22:%22Named%22,%22colorpicker_named_title%22:%22Named%20colors%22,%22colorpicker_color%22:%22Color%22,%22colorpicker_name%22:%22Name%22,%22charmap_title%22:%22Select%20special%20character%22}

,%22ez%22:

{%22root_node_name%22:%22Top%20Level%20Nodes%22,%22empty_search_result%22:%22No%20results%20were%20found%20when%20searching%20for%20"%3Csearch_string%3E"%22,%22empty_bookmarks_result%22:%22You%20have%20no%20bookmarks%22}

,%22searchreplace_dlg%22:

{%22searchnext_desc%22:%22Find%20again%22,%22notfound%22:%22The%20search%20has%20been%20completed.%20The%20search%20string%20could%20not%20be%20found.%22,%22search_title%22:%22Find%22,%22replace_title%22:%22Find/Replace%22,%22allreplaced%22:%22All%20occurrences%20of%20the%20search%20string%20were%20replaced.%22,%22findwhat%22:%22Find%20what%22,%22replacewith%22:%22Replace%20with%22,%22direction%22:%22Direction%22,%22up%22:%22Up%22,%22down%22:%22Down%22,%22mcase%22:%22Match%20case%22,%22findnext%22:%22Find%20next%22,%22replace%22:%22Replace%22,%22replaceall%22:%22Replace%20all%22}

}}%20);