diff --git a/core/_install.php b/core/_install.php
index 527708fa..dcc622be 100644
--- a/core/_install.php
+++ b/core/_install.php
@@ -56,8 +56,6 @@ date_default_timezone_set('UTC');
 		</div>
 		<pre style="display:none">
 <?php }
-assert_options(ASSERT_ACTIVE, 1);
-assert_options(ASSERT_BAIL, 1);
 
 // Pull in necessary files
 require_once "core/exceptions.php";
diff --git a/core/imageboard/image.php b/core/imageboard/image.php
index 804bc834..f495d377 100644
--- a/core/imageboard/image.php
+++ b/core/imageboard/image.php
@@ -202,7 +202,7 @@ class Image
         $yays = 0;
         $nays = 0;
         foreach ($tags as $tag) {
-            if (!preg_match("/^-?[a-zA-Z0-9_-]+$/", $tag)) {
+            if (!preg_match("/^-?[a-zA-Z0-9_'-]+$/", $tag)) {
                 return null;
             }
             if ($tag[0] == "-") {
diff --git a/core/util.php b/core/util.php
index 63cdac07..41fc04d6 100644
--- a/core/util.php
+++ b/core/util.php
@@ -351,17 +351,6 @@ function log_slow(): void
     }
 }
 
-function score_assert_handler($file, $line, $code, $desc = null): void
-{
-    $file = basename($file);
-    print("Assertion failed at $file:$line: $code ($desc)");
-    /*
-    print("<pre>");
-    debug_print_backtrace();
-    print("</pre>");
-    */
-}
-
 
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
 * Request initialisation stuff                                              *
@@ -396,11 +385,6 @@ function _sanitise_environment(): void
     ini_set('assert.exception', 1);  // throw exceptions when failed
     if (DEBUG) {
         error_reporting(E_ALL);
-        assert_options(ASSERT_ACTIVE, 1);
-        assert_options(ASSERT_BAIL, 1);
-        assert_options(ASSERT_WARNING, 0);
-        assert_options(ASSERT_QUIET_EVAL, 1);
-        assert_options(ASSERT_CALLBACK, 'score_assert_handler');
     }
 
     $_shm_ctx = new Context();