diff --git a/lib/blocklib.php b/lib/blocklib.php
index 045c652fcea..3931dbeed9f 100644
--- a/lib/blocklib.php
+++ b/lib/blocklib.php
@@ -897,7 +897,7 @@ class block_manager {
             //      it is shortened because some web servers (e.g. IIS by default) give
             //      a 'security' error if you try to pass a full URL as a GET parameter in another URL.
             
-            $return = $this->out(false, array(), false);
+            $return = $this->out_raw();
             $return = str_replace($CFG->wwwroot . '/', '', $return);
             
             $controls[] = array('url' => $CFG->wwwroot . '/' . $CFG->admin .
diff --git a/lib/editor/tinymce/lib.php b/lib/editor/tinymce/lib.php
index 0b93e7996ca..1547722a38e 100644
--- a/lib/editor/tinymce/lib.php
+++ b/lib/editor/tinymce/lib.php
@@ -75,7 +75,7 @@ class tinymce_texteditor extends texteditor {
         $strtime        = get_string('strftimetime');
         $strdate        = get_string('strftimedaydate');
         $lang           = str_replace('_utf8', '', current_language()); // use more standard language codes
-        $contentcss     = $PAGE->theme->editor_css_url()->out(false, array(), false);
+        $contentcss     = $PAGE->theme->editor_css_url()->out_raw();
 
         $context = empty($options['context']) ? get_context_instance(CONTEXT_SYSTEM) : $options['context'];
         if (!empty($options['legacy'])) {
diff --git a/lib/outputactions.php b/lib/outputactions.php
index a6b44a91cf5..6e33f385060 100644
--- a/lib/outputactions.php
+++ b/lib/outputactions.php
@@ -132,7 +132,7 @@ class popup_action extends component_action {
                 $this->params[$var] = $params[$var];
             }
         }
-        parent::__construct($event, 'openpopup', array('url' => $url->out(false, array(), false), 'name' => $name, 'options' => $this->get_js_options($params)));
+        parent::__construct($event, 'openpopup', array('url' => $url->out_raw(), 'name' => $name, 'options' => $this->get_js_options($params)));
     }
 
     /**
diff --git a/lib/outputrenderers.php b/lib/outputrenderers.php
index 4265440e117..8ddf06d4e53 100644
--- a/lib/outputrenderers.php
+++ b/lib/outputrenderers.php
@@ -740,7 +740,7 @@ class core_renderer extends renderer_base {
         foreach ($controls as $control) {
             $controlshtml[] = html_writer::tag('a', array('class' => 'icon',
                     'title' => $control['caption'], 'href' => $control['url']),
-                    html_writer::empty_tag('img',  array('src' => $this->pix_url($control['icon'])->out(false, array(), false),
+                    html_writer::empty_tag('img',  array('src' => $this->pix_url($control['icon'])->out_raw(),
                     'alt' => $control['caption'])));
         }
         return html_writer::tag('div', array('class' => 'commands'), implode('', $controlshtml));
@@ -820,7 +820,7 @@ class core_renderer extends renderer_base {
             $plaintitle = strip_tags($bc->title);
             $this->page->requires->js_function_call('new block_hider', array($bc->id, $userpref,
                     get_string('hideblocka', 'access', $plaintitle), get_string('showblocka', 'access', $plaintitle),
-                    $this->pix_url('t/switch_minus')->out(false, array(), false), $this->pix_url('t/switch_plus')->out(false, array(), false)));
+                    $this->pix_url('t/switch_minus')->out_raw(), $this->pix_url('t/switch_plus')->out_raw()));
         }
     }
 
diff --git a/lib/pagelib.php b/lib/pagelib.php
index d6ad362f58b..873ab466263 100644
--- a/lib/pagelib.php
+++ b/lib/pagelib.php
@@ -999,7 +999,7 @@ class moodle_page {
             if (empty($this->_block_actions_done)) {
                 $this->_block_actions_done = true;
                 if ($this->blocks->process_url_actions($this)) {
-                    redirect($this->url->out(false, array(), false));
+                    redirect($this->url->out_raw());
                 }
             }
             $this->blocks->create_all_block_instances();
diff --git a/lib/portfoliolib.php b/lib/portfoliolib.php
index 784f28a75df..eb84a36f7e4 100644
--- a/lib/portfoliolib.php
+++ b/lib/portfoliolib.php
@@ -319,7 +319,7 @@ class portfolio_add_button {
         }
         // if we just want a url to redirect to, do it now
         if ($format == PORTFOLIO_ADD_FAKE_URL) {
-            return $url->out(false, array(), false);
+            return $url->out_raw();
         }
 
         if (empty($addstr)) {
diff --git a/lib/weblib.php b/lib/weblib.php
index 089d55adeff..06c10521eb9 100644
--- a/lib/weblib.php
+++ b/lib/weblib.php
@@ -647,7 +647,7 @@ function prepare_url($url, $stripformparams=false) {
         if (preg_match('/(.*)\/([A-Za-z0-9-_]*\.php)$/', $PAGE->url->out(true), $matches)) {
             return $matches[1] . "/$output";
         } else if ($output == '') {
-            return $PAGE->url->out(false, array(), false) . '#';
+            return $PAGE->url->out_raw() . '#';
         } else {
             throw new coding_exception('Unrecognied URL scheme. Please check the formatting of the URL passed to this function. Absolute URLs are the preferred scheme.');
         }
@@ -2071,7 +2071,7 @@ function print_collapsible_region_start($classes, $id, $caption, $userpref = fal
     $output .= '</div><div id="' . $id . '_inner" class="collapsibleregioninner">';
     $PAGE->requires->js_function_call('new collapsible_region',
             array($id, $userpref, get_string('clicktohideshow'),
-            $OUTPUT->pix_url('t/collapsed')->out(false, null, false), $OUTPUT->pix_url('t/expanded')->out(false, null, false)));
+            $OUTPUT->pix_url('t/collapsed')->out_raw(), $OUTPUT->pix_url('t/expanded')->out_raw()));
 
     if ($return) {
         return $output;
@@ -2475,7 +2475,7 @@ function redirect($url, $message='', $delay=-1) {
     global $OUTPUT, $PAGE, $SESSION, $CFG;
 
     if ($url instanceof moodle_url) {
-        $url = $url->out(false, array(), false);
+        $url = $url->out_raw();
     }
 
     if (!empty($CFG->usesid) && !isset($_COOKIE[session_name()])) {
diff --git a/mod/workshop/allocation/random/lib.php b/mod/workshop/allocation/random/lib.php
index 96073bf8c30..5c506468f27 100644
--- a/mod/workshop/allocation/random/lib.php
+++ b/mod/workshop/allocation/random/lib.php
@@ -66,7 +66,7 @@ class workshop_random_allocator implements workshop_allocator {
         $customdata['workshop'] = $this->workshop;
         $this->mform = new workshop_random_allocator_form($PAGE->url, $customdata);
         if ($this->mform->is_cancelled()) {
-            redirect($PAGE->url->out(false, array(), false));
+            redirect($PAGE->url->out_raw());
         } else if ($settings = $this->mform->get_data()) {
             // process validated data
             if (!confirm_sesskey()) {
diff --git a/question/editlib.php b/question/editlib.php
index 6cdeea5ba63..c6de2f0bbd0 100644
--- a/question/editlib.php
+++ b/question/editlib.php
@@ -800,8 +800,9 @@ class question_bank_view {
         }
 
         // Create the url of the new question page to forward to.
+        // TODO: it is sloppy to pass around full URLs through page parameters and some servers do not like that
         $this->editquestionurl = new moodle_url("$CFG->wwwroot/question/question.php",
-                array('returnurl' => urlencode($pageurl->out(false, array(), false))));
+                array('returnurl' => urlencode($pageurl->out_raw())));
         if ($cm !== null){
             $this->editquestionurl->param('cmid', $cm->id);
         } else {
diff --git a/question/question.php b/question/question.php
index 904c208ab64..d13af26132a 100644
--- a/question/question.php
+++ b/question/question.php
@@ -218,7 +218,8 @@ if ($mform->is_cancelled()){
     /// Ensure we redirect back to the category the question is being saved into.
     $returnurl = new moodle_url($returnurl);
     $returnurl->param('category', $fromform->category);
-    $returnurl = $returnurl->out(false, array(), false);
+    // TODO: it is sloppy to pass arounf full URLs through page parameters and some servers do not like that
+    $returnurl = $returnurl->out_raw();
 
     /// Call the appropriate method.
     if ($movecontext) {