Steps to Reproduce

    <script src="require.js"/>
    <button onClick='org.zkoss.zkmax.ui.util.Toast.show("now is " + System.currentTimeMillis())'/>

1. click the button

Current Result

no toast message showed

zkmax.wgt.wpd:4073 ReferenceError: SignaturePad is not defined
at zkmax.wgt.wpd:2819:26
at doEnd (zk.wpd:28136:7)
at Function._zkf (zk.wpd:28187:9)
at zk.fmt.wpd:618:48
at doEnd (zk.wpd:28136:7)
at Function._zkf (zk.wpd:28187:9)
at zk.fmt.wpd:618:74
(anonymous) @ zkmax.wgt.wpd:4073
doEnd @ zk.wpd:28136
_zkf @ zk.wpd:28187
(anonymous) @ zk.fmt.wpd:618
doEnd @ zk.wpd:28136
_zkf @ zk.wpd:28187
(anonymous) @ zk.fmt.wpd:618
zk.wpd:50894 Uncaught TypeError: Cannot read properties of undefined (reading 'show')
at zk.wpd:50894:19
at doEnd (zk.wpd:28136:7)
at Function._zkf (zk.wpd:28187:9)
at zkmax.wgt.wpd:4073:48
at doEnd (zk.wpd:28136:7)
at Function._zkf (zk.wpd:28187:9)
at zk.fmt.wpd:618:48
at doEnd (zk.wpd:28136:7)
at Function._zkf (zk.wpd:28187:9)

Expected Result

show a toast message

Debug Information

• a customer use a 3rd party library that has define function from require.js

Workaround

zk.load('zkmax.wgt', null); first