diff --git a/blockbot/blockbot.php b/blockbot/blockbot.php
index 163d0cbc..71e35c93 100644
--- a/blockbot/blockbot.php
+++ b/blockbot/blockbot.php
@@ -208,7 +208,7 @@ function blockbot_log_activitypub(string $url, string $agent)
 		blockbot_save('activitypub-inbox-agents', $agent);
 	}
 
-	if (!empty($_SERVER['HTTP_SIGNATURE']) && !empty(HTTPSignature::getSigner('', $_SERVER))) {
+	if (!empty($_SERVER['HTTP_SIGNATURE']) && !empty(HTTPSignature::getSigner('', $_SERVER, false))) {
 		blockbot_save('activitypub-signature-agents', $agent);
 	}
 }
diff --git a/invidious/invidious.php b/invidious/invidious.php
index 033ecce5..5fa2eca9 100644
--- a/invidious/invidious.php
+++ b/invidious/invidious.php
@@ -54,8 +54,8 @@ function invidious_settings(array &$data)
 
 	$t    = Renderer::getMarkupTemplate('settings.tpl', 'addon/invidious/');
 	$html = Renderer::replaceMacros($t, [
-		'$enabled' => ['enabled', DI::l10n()->t('Replace Youtube links with links to an Invidious server'), $enabled, DI::l10n()->t('If enabled, Youtube links are replaced with the links to the specified Invidious server.')],
-		'$server'  => ['server', DI::l10n()->t('Invidious server'), $server, DI::l10n()->t('See %s for a list of available Invidious servers.', '<a href="https://api.invidious.io/">https://api.invidious.io/</a>')],
+		'$enabled' => ['invidious-enabled', DI::l10n()->t('Replace Youtube links with links to an Invidious server'), $enabled, DI::l10n()->t('If enabled, Youtube links are replaced with the links to the specified Invidious server.')],
+		'$server'  => ['invidious-server', DI::l10n()->t('Invidious server'), $server, DI::l10n()->t('See %s for a list of available Invidious servers.', '<a href="https://api.invidious.io/">https://api.invidious.io/</a>')],
 	]);
 
 	$data = [
@@ -71,9 +71,9 @@ function invidious_settings_post(array &$b)
 		return;
 	}
 
-	DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'invidious', 'enabled', (bool)$_POST['enabled']);
+	DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'invidious', 'enabled', (bool)$_POST['invidious-enabled']);
 
-	$server = trim($_POST['server'], " \n\r\t\v\x00/");
+	$server = trim($_POST['invidious-server'], " \n\r\t\v\x00/");
 	if ($server != DI::config()->get('invidious', 'server', INVIDIOUS_DEFAULT) && !empty($server)) {
 		DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'invidious', 'server', $server);
 	} else {
diff --git a/markdown/markdown.php b/markdown/markdown.php
index 0822ac83..1ef6cd9a 100644
--- a/markdown/markdown.php
+++ b/markdown/markdown.php
@@ -26,7 +26,7 @@ function markdown_addon_settings(array &$data)
 
 	$t    = Renderer::getMarkupTemplate('settings.tpl', 'addon/markdown/');
 	$html = Renderer::replaceMacros($t, [
-		'$enabled' => ['enabled', DI::l10n()->t('Enable Markdown parsing'), $enabled, DI::l10n()->t('If enabled, adds Markdown support to the Compose Post form.')],
+		'$enabled' => ['markdown-enabled', DI::l10n()->t('Enable Markdown parsing'), $enabled, DI::l10n()->t('If enabled, adds Markdown support to the Compose Post form.')],
 	]);
 
 	$data = [
@@ -42,7 +42,7 @@ function markdown_addon_settings_post(array &$b)
 		return;
 	}
 
-	DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'markdown', 'enabled', intval($_POST['enabled']));
+	DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'markdown', 'enabled', intval($_POST['markdown-enabled']));
 }
 
 function markdown_post_local_start(&$request) {
diff --git a/saml/saml.php b/saml/saml.php
index c8824b46..83e4d3fd 100755
--- a/saml/saml.php
+++ b/saml/saml.php
@@ -82,11 +82,13 @@ function saml_footer(string &$body)
 <script>
 var target=$("#settings-nickname-desc");
 if (target.length) { target.append("<p>$fragment</p>"); }
-document.getElementById('id_email').setAttribute('readonly', 'readonly');
 var saml_hint = document.createElement("span");
 var saml_hint_text = document.createTextNode('$samlhint');
 saml_hint.appendChild(saml_hint_text);
-document.getElementById('id_email').parentNode.insertBefore(saml_hint, document.getElementById('id_email').nextSibling);
+if ( document.getElementById('id_email') != null ) {
+	document.getElementById('id_email').setAttribute('readonly', 'readonly');
+	document.getElementById('id_email').parentNode.insertBefore(saml_hint, document.getElementById('id_email').nextSibling);
+}
 // Frio theme
 if ( document.getElementById('password-settings-collapse') != null ) {
 	document.getElementById('password-settings-collapse').replaceChildren(saml_hint.cloneNode(true));