Delay in data Json Generate, causes errors when saving.

[libastian]

I have observed a fairly long delay (3 sec), to generate the Json with seo information in the hidden field:

https://github.com/bobdenotter/seo/blob/master/twig/_seo_extension_field.twig#L213

If you perform any changes in the fields located at the bottom of page (e.g .: Meta robots tag - Shortlink alias) and quickly you click on the save button, this change is not saved.

I checked that everything works properly changing to 0 the delay value.

Why do you set that delay?

[melcarthus]

Second this. I'm not able to save the setting for meta-robots-tags. Did not know it was because of this delay.

[xiaohutai]

I've noticed too when working on this extension. It's this part now:
https://github.com/bobdenotter/seo/blob/master/templates/_seo_extension_field.twig#L224

I do feel 3000ms is a bit too much. I wonder if throttling / debouncing the update function would be a better idea. Or ideally, just before the save button is clicked (if that's even possible).