Don't rewrite if we aren't ready

camo-image-proxy.php

@@ -58,10 +58,11 @@ function init() {
 	Options::instance();
 	URL::instance();
 
-	// Don't rewrite in the admin!
 	if ( is_admin() ) {
 		Options_Page::instance();
-	} else {
+	}
+
+	if ( URL::instance()->can_rewrite() ) {
 		Rewrite_URLs::instance();
 		Rewrite_Content::instance();
 	}

inc/class-url.php

@@ -19,6 +19,11 @@ class URL {
 	 * @return bool
 	 */
 	public function can_rewrite() : bool {
+		// Never rewrite in admin.
+		if ( is_admin() ) {
+			return false;
+		}
+
 		$host = Options::instance()->get( 'host' );
 		$key  = Options::instance()->get( 'key' );