Fix possible error on update page

resources/misc/changelogs/en/4.1.2.md

@@ -0,0 +1,3 @@
+## Fixed
+
+- Fixed possible error on update page.

resources/misc/changelogs/zh_CN/4.1.2.md

@@ -0,0 +1,3 @@
+## 修复
+
+- 修复升级页面可能的出错

resources/views/setup/updates/welcome.blade.php

@@ -8,10 +8,9 @@
 
 <p>{!! nl2br(trans('setup.updates.welcome.text', ['version' => config('app.version')])) !!}</p>
 
-<form method="post" action="{{ url('/setup/update') }}" novalidate="novalidate">
-    @csrf
-    <p class="step">
-        <input type="submit" name="submit" class="button button-large" value="@lang('setup.updates.welcome.button')"  />
-    </p>
-</form>
+<p class="step">
+    <a href="{{ url('/setup/exec-update') }}" class="button button-large">
+    @lang('setup.updates.welcome.button')
+    </a>
+</p>
 @endsection

routes/setup.php

@@ -21,6 +21,6 @@ Route::group(['middleware' => 'setup'], function () {
     Route::post('/finish', 'SetupController@finish');
 });
 
-Route::get('/update', 'SetupController@update');
-Route::post('/update', 'SetupController@doUpdate');
+Route::any('/update', 'SetupController@update');
+Route::any('/exec-update', 'SetupController@doUpdate');
 Route::view('/changelog', 'setup.updates.changelog');

tests/SetupControllerTest.php

@@ -221,13 +221,13 @@ class SetupControllerTest extends TestCase
         );    // Just a fixture
 
         config(['options.new_option' => 'value']);
-        $this->post('/setup/update')->assertViewHas('tips');
+        $this->get('/setup/exec-update')->assertViewHas('tips');
         $this->assertEquals('value', option('new_option'));
         $this->assertEquals('100.0.0', option('version'));
         unlink(database_path("update_scripts/update-$current_version-to-100.0.0.php"));
 
         option(['version' => '3.0.0']);   // Fake old version
-        $this->post('/setup/update');
+        $this->get('/setup/exec-update');
         $this->assertEquals('100.0.0', option('version'));
     }