New in Symfony 3.2: Web Debug Toolbar and Profiler Improvements
Warning: This post is about an unsupported Symfony version. Some of this information may be out of date. Read the most recent Symfony Docs.
The new Content Security Policy HTTP response header helps you reduce XSS risks on modern browsers by declaring what dynamic resources are allowed to load via a HTTP Header.
If your application defines such a policy, the
directives could disallow unsafe inlines, which would prevent the loading of the
web debug toolbar.
In Symfony 3.2 we made the web debug toolbar compatible with those kind of Content Security Policies. Internally this change required massive code updates, but for developers it will be completely transparent and it won't require any change in their applications.
The Symfony profiler displays the contents of lots of variables. The dumping of those contents is made in the profiler itself and is challenging for variables that are complex arrays or objects.
In Symfony 3.2 we decided to use the VarDumper component to dump the contents of all variables. This will make the information easier to understand thanks to the new syntax highlighting and the toggles to reveal/collapse long contents:
The web debug toolbar includes a panel with the profiles of the requests made via Ajax. In Symfony 3.2, this panel will also display the requests made with the new fetch API.
When an error occurs in a Symfony form, the profiler shows the number of errors but you must navigate through the form fields to find the actual field causing the error:
In Symfony 3.2 we changed the behavior of the Form panel in the profiler to always expand automatically the form fields that caused any error:
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