New in Symfony 4.1: Self-updating debug toolbar
Contributed by
Jeffrey Brubaker
in #26655.
Single-page applications (SPA) are web applications that use JavaScript to rewrite the current page contents dynamically rather than loading entire new pages from the backend.
One of the problems of working on those applications is that Symfony's Web Debug Toolbar remains unchanged with the debug information of the first action executed when browsing the application.
In order to solve this issue, in Symfony 4.1 we've introduced a special
Symfony-Debug-Toolbar-Replace
HTTP header. Set its value to 1
to tell
Symfony to replace the web debug toolbar with the new one associated with the
current response.
If you want to enable this behavior for just one response, add this to your code:
1 | $response->headers->set('Symfony-Debug-Toolbar-Replace', 1);
|
If you work on a SPA application, it's better to define an event subscriber
and listen to the kernel.response
event to add that header automatically.
As with any Open-Source project, contributing code or documentation is the most common way to help, but we also have a wide range of sponsoring opportunities.
New in Symfony 4.1: Self-updating debug toolbar symfony.com/blog/new-in-symfony-4-1-self-updating-debug-toolbar
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jeremyFreeAgent said on Apr 30, 2018 at 10:53 #1