[jira] [Assigned] (WICKET-6480) SubmitLink can submit the form multiple times

["Andrea Del Bene (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/WICKET-6480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrea Del Bene reassigned WICKET-6480:
---------------------------------------

    Assignee: Andrea Del Bene

> SubmitLink can submit the form multiple times
> ---------------------------------------------
>
>                 Key: WICKET-6480
>                 URL: https://issues.apache.org/jira/browse/WICKET-6480
>             Project: Wicket
>          Issue Type: Improvement
>          Components: wicket
>    Affects Versions: 7.8.0
>            Reporter: Sven Ackermann
>            Assignee: Andrea Del Bene
>
> Hi,
> I recently had a problem with a SubmitLink where a user double clicked on it (in Chrome 60.0.3112.90). The form was submitted twice and the submit action executed twice. I even could reproduce this with 5 clicks resulting in 5 submits.
> To fix that, I just replaced the SubmitLink with a Button where the browser submits the form only on the first click. Browsers can/do not prevent that for the Javascript that is used with SubmitLink.
> Javadoc of SubmitLink says "A link which can be used exactly like a Button to submit a Form.". That is not exactly true, because you have to be aware of the fact that it does not prevent multiple submits.
> My suggestion is to either put a warning about that in the doc or add a flag to SubmitLink that modifies the onclick-Javascript such that it will be executed only once per page.
> Thanks
> Sven



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