Error handling

[NatalyR]

Hello,

I'd like to ask you a question i haven't found a solution here and that can be seen on Justified Gallery website, on "Errors handling" page (http://miromannino.github.io/Justified-Gallery/errors-handling/).
What i want is the image with src not found to be shown anyway (with the default broken image) so i can see some pictures are missing, and as i am displaying text for each picture, even if picture is missing, text need to be shown.
From what i understand they are hidden and only a error is displayed in the console. But on the "Errors handling" page the "broken image" is shown, which is exactly what i want.
How can i make this to always happen ?

Thank you in advance for your help,

Nataly