Debug mode breaks invoice and delivery slip after order

[Dani1989]

Hello,

I've got a weird problem. When a customer makes an order and successfully pays, that order gets the status Payment Received. This status is set to generate both invoice and delivery slip.

When debug mode is enabled, this the invoice and delivery slip are NOT generated. If I switch the order to another status, then they get generated and I can open them without an issue.

This only happens when debug mode is enabled. 

When production mode is enabled, then everything works good.

 

Any ideas what might be causing this problem or what the solution could be?

Thanks!

[PrestaHeroes USA]

never run debug mode unless actively debugging as the output from debug can break many things.

the fix = disable debug mode, or add hack for debug enabled on specific IP

 

[Dani1989]

Hi, thank you for taking time to help me out. 

I am upgrading the site for a client and installing a new theme hence why debug mode is enabled on a backup of the live site.

I don't have any modules installed that modify the Invoice or DS process. Are you saying that the output from the Debug Mode can break
even the original methods of PrestaShop?

 

 

[tuk66]

Debug mode in 1.7 is devil. It can break even perfectly working page because of unimportant PHP Notice.

If you want to play with it, try to set different $errorReportingLevel default value:

public static function enable($errorReportingLevel = E_ERROR, $displayErrors = true)

in the /vendor/symfony/symfony/src/Symfony/Component/Debug/Debug.php file.

[Dani1989]

Ok, thank you both!

[PrestaHeroes USA]

we no longer use ps debug mode but wrote in-house module that reports all php/.js errors etc. to rollbar.com.  So we never need to enable ps debug mode.

[pycode.biz]

Its normal thing. Debug mode sending data with http headers before you're able to download PDF. In production servers you should use some APM like newrelic, sentry or elastic APM for handling errors

[tuk66]

Of course, you are professionals, but my note generally goes to PrestaShop for normal people, where debug mode is useless.