Ticket #40886: 40886.diff

src/wp-includes/rest-api.php

@@ -308 +308 @@
  * @return string Full URL to the endpoint.
  */
 function get_rest_url( $blog_id = null, $path = '/', $scheme = 'rest' ) {
+        global $is_nginx;
         if ( empty( $path ) ) {
                 $path = '/';
         }
@@ -324 +325 @@
                 $url .= '/' . ltrim( $path, '/' );
         } else {
                 $url = trailingslashit( get_home_url( $blog_id, '', $scheme ) );
+                // nginx only allows HTTP/1.0 methods when redirecting from / to /index.php
+                // To work around this, we manually add index.php to the URL, avoiding the redirect.
+                if ( $is_nginx && 'index.php' !== substr( $url, 9 ) ) {
+                        $url .= 'index.php';
+                }
 
                 $path = '/' . ltrim( $path, '/' );
 

tests/phpunit/tests/rest-api.php

@@ -316 +316 @@
                 $this->set_permalink_structure( '' );
                 $this->assertEquals( 'http://' . WP_TESTS_DOMAIN . '/?rest_route=/', get_rest_url() );
 
+                // nginx requires index.php in non-pretty permalinks.
+                global $is_nginx;
+                $is_nginx_backup = $is_nginx;
+                $is_nginx = true;
+
+                $url = get_rest_url();
+
+                $is_nginx = $is_nginx_backup;
+
+                $this->assertEquals( 'http://' . WP_TESTS_DOMAIN . '/index.php?rest_route=/', $url );
         }
+
         /**
          * @ticket 34299
          */