diff --git a/resources/assets/src/js/admin/players.js b/resources/assets/src/js/admin/players.js
index e12edad9..5d6e85e7 100644
--- a/resources/assets/src/js/admin/players.js
+++ b/resources/assets/src/js/admin/players.js
@@ -8,10 +8,13 @@ function initPlayersTable() {
     const query = location.href.split('?')[1];
 
     $('#player-table').DataTable({
-        ajax: url(`admin/player-data${ query ? ('?'+query) : '' }`),
+        columnDefs: playersTableColumnDefs,
         scrollY: ($('.content-wrapper').height() - $('.content-header').outerHeight()) * 0.7,
         fnDrawCallback: () => $('[data-toggle="tooltip"]').tooltip(),
-        columnDefs: playersTableColumnDefs
+        ajax: {
+            url: url(`admin/player-data${ query ? ('?'+query) : '' }`),
+            type: 'POST'
+        }
     }).on('xhr.dt', handleDataTablesAjaxError);
 }
 
diff --git a/resources/assets/src/js/admin/plugins.js b/resources/assets/src/js/admin/plugins.js
index ed0a6136..ec81872a 100644
--- a/resources/assets/src/js/admin/plugins.js
+++ b/resources/assets/src/js/admin/plugins.js
@@ -6,9 +6,12 @@ if ($('#plugin-table').length === 1) {
 
 function initPluginsTable() {
     $.pluginsTable = $('#plugin-table').DataTable({
-        ajax: url('admin/plugins/data'),
+        columnDefs: pluginsTableColumnDefs,
         fnDrawCallback: () => $('[data-toggle="tooltip"]').tooltip(),
-        columnDefs: pluginsTableColumnDefs
+        ajax: {
+            url: url('admin/plugins/data'),
+            type: 'POST'
+        }
     }).on('xhr.dt', handleDataTablesAjaxError);
 }
 
diff --git a/resources/assets/src/js/admin/users.js b/resources/assets/src/js/admin/users.js
index bfc491b8..5752afa2 100644
--- a/resources/assets/src/js/admin/users.js
+++ b/resources/assets/src/js/admin/users.js
@@ -8,11 +8,14 @@ function initUsersTable() {
     const query = location.href.split('?')[1];
 
     $('#user-table').DataTable({
-        ajax: url(`admin/user-data${ query ? ('?'+query) : '' }`),
+        columnDefs: usersTableColumnDefs,
         scrollY: ($('.content-wrapper').height() - $('.content-header').outerHeight()) * 0.7,
         fnDrawCallback: () => $('[data-toggle="tooltip"]').tooltip(),
         rowCallback: (row, data) => $(row).attr('id', `user-${data.uid}`),
-        columnDefs: usersTableColumnDefs
+        ajax: {
+            url: url(`admin/user-data${ query ? ('?'+query) : '' }`),
+            type: 'POST'
+        }
     }).on('xhr.dt', handleDataTablesAjaxError);
 }
 
diff --git a/routes/web.php b/routes/web.php
index f6f4a128..4afe09f5 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -111,20 +111,22 @@ Route::group(['middleware' => 'admin', 'prefix' => 'admin'], function ()
     Route::any('/options',     'AdminController@options');
 
     Route::get('/users',       'AdminController@users');
-    Route::get('/user-data',   'AdminController@getUserData');
+    Route::any('/user-data',   'AdminController@getUserData');
 
     Route::get('/players',     'AdminController@players');
-    Route::get('/player-data', 'AdminController@getPlayerData');
+    Route::any('/player-data', 'AdminController@getPlayerData');
     Route::get('/user/{uid}',  'AdminController@getOneUser');
 
-    // ajax handlers
+    // Ajax handlers
     Route::post('/users',      'AdminController@userAjaxHandler');
     Route::post('/players',    'AdminController@playerAjaxHandler');
 
     Route::group(['prefix' => 'plugins'], function () {
-        Route::get ('/data',   'PluginController@getPluginData');
         Route::any ('/market', 'PluginController@showMarket');
 
+        // Allow using POST method to get data for DataTables,
+        // otherwise it may cause a "414 Request-URI Too Large" error.
+        Route::any ('/data',   'PluginController@getPluginData');
         Route::get ('/manage', 'PluginController@showManage');
         Route::post('/manage', 'PluginController@manage');
         Route::any ('/config/{name}', 'PluginController@config');