SecurityError DOM Exception 18 on Safari for iOS on iPad

[deliriousrhino]

Security Error on Safari on IPad iOS 8.3 and 8.4
Looks like it is the same as this one but for safari
#3382

I created a very simple plunker which recreates the issue.
http://plnkr.co/edit/s9zZqHj9ECsvKh21cRS0?p=preview

Thanks in advance.
Ryan

[nolanlawson]

Can you provide some more detail? Is it a website or an app? What are you doing to cause the error? Can you provide a screenshot?

[nolanlawson]

DOM Exception 18 usually means you exceeded the quota allowed on the device (50MB), although in some environments it's because Apple removed WebSQL support (e.g. WKWebView).

[deliriousrhino]

Its a website. If I run the plunker which is very simple I get the error. http://plnkr.co/edit/s9zZqHj9ECsvKh21cRS0?p=preview

This is the only custom code it contains

new PouchDB('localPouchName', {
                    size: 1000
                }).then(function(){
                   console.log('database created')
                }).catch(function(err){
                    console.log('Error created database',err)
                });

So if I am asking for more storage than the device has I may get this error?
I don't have the devices with me but can lower the size and re test later today.

[nolanlawson]

Yep, so the size is in MB (see http://pouchdb.com/errors.html#not_enough_space), so if you try to request 1000MB (i.e. 1GB) on iOS, it will definitely throw an error because you are only allowed to have 50MB max. (Desktop Safari allows you to have more, but not iOS.)

[deliriousrhino]

Yes the safari 50mb limit was causing the error.
Changing to size 50 fixed the problem. Thanks

new PouchDB('localPouchName', {
                    size: 50
                }).then(function(){
                   console.log('database created')
                }).catch(function(err){
                    console.log('Error created database',err)
                });

[soitgoes]

I'm getting this error even if I specify {size:50} on version 5.3.2.

For the WKWebView what is the suggested workaround?

[nolanlawson]

WKWebView does not support WebSQL at all. It's an open bug on WebKit. Here's a brief rundown of options: #5079

[soitgoes]

Thanks so much for the speedy response!

On Mon, Apr 25, 2016 at 4:36 PM, Nolan Lawson notifications@github.com
wrote:

WKWebView does not support WebSQL at all. It's an open bug on WebKit.
Here's a brief rundown of options: #5079
#5079

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