CMS Pattern not matching?

Netlify CMS
1

Using the code below I am trying to set the maximum length of a meta description box to be 300.
No matter what I type into the box, it will also say it did not match the pattern.
I have tried quite a few different regex patterns and also made sure I wasn’t using new lines just incase the . didn’t match all etc.

    fields:
              - {
                  label: Description,
                  name: description,
                  widget: text,
                  required: false,
                  pattern: [".{,300}", "Must not exceed 300 characters"],
                }

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2

Hi @AaronP :wave:
You can test your pattern using a service like https://regex101.com/

For this specific case .{0,300} should work.

3

I was using regex tester and I also tried your Reged stated above. Just to confirm, if the pattern does NOT match then the error should show?

4

Yes, the error will show if the pattern doesn’t match.
To be more precise the pattern should be pattern: ['^.{0,300}$', 'Must not exceed 300 characters']
I’ve tested this locally:

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If that still doesn’t work, can you share a repo reproducing the issue?

1 Like
5

Currently out but will update when I can. I haven’t tried including the ^ so maybe that’s the solution.

6

Marked as solution. The ^ and $ seemed to solve the issue! Thanks

1 Like