How to display a custom 500 error page?

Question

Apache HTTP Server

At the root of the site, there is an .htaccess with the following content:

ErrorDocument 403 /document-errors/403.html
ErrorDocument 404 /document-errors/404.html
ErrorDocument 500 /document-errors/500.html

403 and 404 are processed correctly, but if you create an error directly in htaccess, a standard 500 error is rolled out. I assume that by creating a syntax error I am preventing the server from getting to custom error pages.

From this, the following questions arise:

1. If I'm right, how do I test for a 500 "correct" error?
   
2. Is there a way to roll out my page even in case of a direct syntax error in .htaccess
   

Answer 1

500 error - this is exactly the error processing .htaccess directives ... as if the dead man read his farewell speech at his funeral. I don’t remember in my practice that at least sometime a special flaunted anywhere. beautiful 500 error page!
Of course, the deceased can also tie the ropes from the puppet, but is it necessary?))