Invalid JSON in custom fields meta value after export

[abdessamad idrissi]

Hey there,

I exported a working copy of my online WordPress site to a local copy and noticed that the code gets changed; The backslash is removed which causes the json format to be invalide.
Original code in the custom fields meta

{"videos":{"0":"<iframe width=\"480\" height=\"360\" src=\"http://www.youtube.com/embed/YAozOaxXYx4\" frameborder=\"0\" allowfullscreen></iframe>"}}

Becomes in the local site after import

{"videos":{"0":"<iframe width="480" height="360" src="http://www.youtube.com/embed/YAozOaxXYx4" frameborder="0" allowfullscreen></iframe>"}}

[duck_]

This is probably caused by stripslashes_deep($meta_value) in add_metadata().

[abdessamad idrissi]

I think it has to do with the WordPress import utility because when I check the exported XML file I find the backslashes there.

[duck_]

Replying to abdessamad idrissi:

I think it has to do with the WordPress import utility because when I check the exported XML file I find the backslashes there.

Yep. The importer uses add_post_meta() which calls add_metadata() which strips slashes from the value.