Symfony version(s) affected: 3.4.x

Description
The hardcoded maxTries option disables the profiler toolbar with longer requests. It should be configurable.
ref:https://github.com/symfony/symfony/blob/3.4/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/toolbar_js.html.twig#L124

How to reproduce
Load a page which embeds another controller in the template. The embedded controller should be slow and respond after ~10-15 seconds. After loading the page, maxTries limit will disable the web profiler.