Chris Green
--- a/environment_indicator.post_update.php 0 → 100644
+++ b/environment_indicator.post_update.php 0 → 100644
+<?php
+
+/**
+ * @file
+ * Post-update hooks for the Environment Indicator module.
+ */
+
+/**
+ * Fix URLs in configuration by removing trailing slashes.
+ */
+function environment_indicator_post_update_remove_trailing_slashes(&$sandbox) {
+  $config_factory = \Drupal::configFactory();
+
+  // Initialize sandbox.
+  if (!isset($sandbox['config_names'])) {
+    // Load all configuration names for the environment_indicator.switcher.* type.