diff --git a/composer.json b/composer.json
index 7b7ae87c0..15d65ccf7 100644
--- a/composer.json
+++ b/composer.json
@@ -101,6 +101,7 @@
         ]
     },
     "scripts": {
+        "api-17": "vendor/bin/phpdoc-md generate system/src > user/pages/14.api/default.17.md",
         "api-16": "vendor/bin/phpdoc-md generate system/src > user/pages/14.api/default.16.md",
         "api-15": "vendor/bin/phpdoc-md generate system/src > user/pages/14.api/default.md",
         "post-create-project-cmd": "bin/grav install",
diff --git a/system/src/Grav/Framework/Controller/Traits/ControllerResponseTrait.php b/system/src/Grav/Framework/Controller/Traits/ControllerResponseTrait.php
index 5beeafcd9..fcce591d0 100644
--- a/system/src/Grav/Framework/Controller/Traits/ControllerResponseTrait.php
+++ b/system/src/Grav/Framework/Controller/Traits/ControllerResponseTrait.php
@@ -16,6 +16,7 @@ use Grav\Common\Debugger;
 use Grav\Common\Grav;
 use Grav\Framework\Psr7\Response;
 use Grav\Framework\RequestHandler\Exception\RequestException;
+use Grav\Framework\Route\Route;
 use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\ServerRequestInterface;
 
@@ -135,8 +136,14 @@ trait ControllerResponseTrait
 
         $accept = $this->getAccept(['application/json', 'text/html']);
 
-        if ($accept === 'text/html') {
-            $request = $this->getRequest();
+        $request = $this->getRequest();
+        $context = $request->getAttributes();
+
+        /** @var Route $route */
+        $route = $context['route'] ?? null;
+
+        $ext = $route ? $route->getExtension() : null;
+        if ($ext !== 'json' && $accept === 'text/html') {
             $method = $request->getMethod();
 
             // On POST etc, redirect back to the previous page.