Ticket #37943: 37943.2.patch

src/wp-admin/js/updates.js

@@ -641 +641 @@
          * @param {string} response.activateUrl URL to activate the just installed plugin.
          */
         wp.updates.installImporterSuccess = function( response ) {
+
                 wp.updates.addAdminNotice( {
                         id:        'install-success',
                         className: 'notice-success is-dismissible',
@@ -1876 +1877 @@
 
                         wp.updates.installPlugin( {
                                 slug:    $button.data( 'slug' ),
+                                pagenow: pagenow,
                                 success: wp.updates.installImporterSuccess,
                                 error:   wp.updates.installImporterError
                         } );

src/wp-admin/includes/ajax-actions.php

@@ -3612 +3612 @@
                 wp_send_json_error( $status );
         }
 
-        $install_status = install_plugin_install_status( $api );
+        $install_status = install_plugin_install_status( $api );    
+    $pagenow = isset( $_POST['pagenow'] ) ? sanitize_key( $_POST['pagenow'] ) : '';
 
+    // If install request is coming from import page, do not return network activation link.
+    $plugins_url = ( 'import' === $pagenow ) ? admin_url( 'plugins.php' ) : network_admin_url( 'plugins.php' );
+
         if ( current_user_can( 'activate_plugins' ) && is_plugin_inactive( $install_status['file'] ) ) {
                 $status['activateUrl'] = add_query_arg( array(
                         '_wpnonce' => wp_create_nonce( 'activate-plugin_' . $install_status['file'] ),
                         'action'   => 'activate',
                         'plugin'   => $install_status['file'],
-                ), network_admin_url( 'plugins.php' ) );
+                ), $plugins_url );
         }
 
         if ( is_multisite() && current_user_can( 'manage_network_plugins' ) ) {