Merge branch 'develop' into 1.7

# Conflicts:
#	composer.lock
#	system/defines.php
#	system/src/Grav/Common/Page/Medium/ImageMedium.php
#	system/src/Grav/Common/Page/Page.php
#	system/src/Grav/Common/Twig/TwigExtension.php

.github/workflows/tests.yaml

@@ -27,6 +27,9 @@ jobs:
           extensions: opcache, gd
           coverage: none
 
+      - name: Update composer
+        run: composer update
+
       - name: Validate composer.json and composer.lock
         run: composer validate
 

CHANGELOG.md

@@ -575,7 +575,7 @@
     * Optimization: Combine some early Grav processors into a single one
 
 # v1.6.31
-## mm/dd/2020
+## 12/14/2020
 
 1. [](#improved)
     * Allow all CSS and JS via `robots.txt` [#2006](https://github.com/getgrav/grav/issues/2006) [#3067](https://github.com/getgrav/grav/issues/3067)

system/src/Grav/Common/Media/Traits/ImageMediaTrait.php

@@ -46,7 +46,7 @@ trait ImageMediaTrait
         'resize', 'forceResize', 'cropResize', 'crop', 'zoomCrop',
         'negate', 'brightness', 'contrast', 'grayscale', 'emboss',
         'smooth', 'sharp', 'edge', 'colorize', 'sepia', 'enableProgressive',
-        'rotate', 'flip', 'fixOrientation', 'gaussianBlur'
+        'rotate', 'flip', 'fixOrientation', 'gaussianBlur', 'format'
     ];
 
     /** @var array */

system/src/Grav/Common/Page/Page.php

@@ -737,7 +737,7 @@ class Page implements PageInterface
             // never cache twig means it's always run after content
             $never_cache_twig = $this->header->never_cache_twig ?? $config->get(
                 'system.pages.never_cache_twig',
-                false
+                true
             );
 
             // if no cached-content run everything

system/src/Grav/Common/Twig/TwigExtension.php

@@ -892,6 +892,7 @@ class TwigExtension extends AbstractExtension implements GlobalsInterface
 
         $loader = new FilesystemLoader('.');
         $env = new Environment($loader);
+        $env->addExtension($this);
 
         $template = $env->createTemplate($twig);
 

system/src/Grav/Framework/Flex/Pages/Traits/PageContentTrait.php

@@ -673,7 +673,7 @@ trait PageContentTrait
         $process_twig = $this->shouldProcess('twig') || $this->isModule();
         $cache_enable = $this->getNestedProperty('header.cache_enable') ?? $config->get('system.cache.enabled', true);
 
-        $twig_first = $this->getNestedProperty('header.twig_first') ?? $config->get('system.pages.twig_first', true);
+        $twig_first = $this->getNestedProperty('header.twig_first') ?? $config->get('system.pages.twig_first', false);
         $never_cache_twig = $this->getNestedProperty('header.never_cache_twig') ?? $config->get('system.pages.never_cache_twig', false);
 
         $cached = null;