Signature Pad: Can't sign, doesn't show on safari

[Ume187]

Using the latest version 4.0.

With firefox the pad appears but cannot be signed.
With safari the pad doesn't show.

[UziTech]

Can you provide code? We can't help unless we can see the code that causes the issue.

[FlorisVeldhuizen]

I also encountered a similar issue (with version 4.0.2), on an iPad with iOS 12.5.5. The signature pad did appear but was not interactive. Before the bump to 4.0.2 this issue was not encountered before.

I see that this PR was not tested with older versions of iOS, could that be the problem?

[marmooo]

It certainly seems to happen on older OS.
However, I do not know the exact conditions and solution now.
I have checked on the following environments.

iPad (2010) with iOS 9.3.5 + Safari.

• 4.0.2: not work
• 4.0.1: not work
• 4.0.0: not work
• 3.0.0-beta.4: work

[donjuandx]

Also tried js versions back up to 2.3.2 on MacOS + Safari Version 15.0 (16612.1.29.41.4, 16612); none of them seem to work!

[ConstantBrum]

I'm receiving this error on an iPhone 8 OS v12.2 on Safari & Chrome BrowserStack and am also unable to sign. And using the umd script of signature_pad version 4.0.0.

Only have the console log of safari

TypeError: function is not a constructor (evaluating 'super()')
SignaturePad @ signature_pad.umd.js:140
dispatch @ jquery.js:5429

I'm able to sign with iOS 14 and 15.

[szimek]

@ConstantBrum can you try version 4.0.1, e.g. from here: https://github.com/szimek/signature_pad/blob/master/docs/js/signature_pad.umd.js ?

[UziTech]

This seems to be an issue with specific code if some code is working on versions of safari and some is not. I don't think there is anything we can change in this library to help that.

If you have a reason to believe it is a bug in this libraries code, please create another issue with the code necessary to reproduce the issue.

If you just have a question about why your code isn't working on a certain browser, you would be better off posting the question to https://stackoverflow.com and using the tag signaturepad.