trigger-dialog - TypeError: Cannot redefine property: contextPath

[fi1on]

I'm trying to make a webwork in dialog that logs some stuff. I created the vm with cancel button: 

<a class="aui-button aui-button-link cancel" href="/browse/${issueKey}" id="log-service-cancel" resolved="">Cancel</a>

 and it works just fine, but after hitting submit, which calls doExecute method in my ApplicationSupport:

@Override
@RequiresXsrfCheck
protected String doExecute() throws Exception {
    return getRedirect(getReturnUrl(), true);
}

@Override
public String getReturnUrl() {
    return "/browse/" + issueKey;
}

The pop-up disappears but grey overlay remains. There's also an error in browser's console:

Uncaught TypeError: Cannot redefine property: contextPath
at Function.defineProperty (<anonymous>)
at eval (eval at globalEval (jquery.js:348), <anonymous>:36:16)
at eval (eval at globalEval (jquery.js:348), <anonymous>:48:7)
at eval (<anonymous>)
at Function.globalEval (jquery.js:348)
at domManip (jquery.js:5296)
at jQuery.fn.init.append (jquery.js:5436)
at jQuery.fn.init.<anonymous> (jquery.js:5530)
at access (jquery.js:3619)
at jQuery.fn.init.html (jquery.js:5497) 

I didn't go anywhere near contextPath variable, my support class extends JiraWebActionSupport, so nothing unexpected either.

I'm using jira 8.2.5 (also checked on 8.5.3) and amps 6.3.15

[Adrian Andres]

Hello, is there any solution to this problem?