vaadin 7.7 with zone js -

[dcabrera22]

Hello. I have a problem with zone.js.
I am using Liferay portlets. In one portlet I had a vaadin portlet and in other portlet i have a portlet portlet who use zone js.

Using the vaadin portlet (for example clicking a button) in some cases i got a "Converting circular structure to JSON". Stack:

GMT-300 2016 com.vaadin.client.ApplicationConfiguration
SEVERE: (TypeError) : Converting circular structure to JSON
com.google.gwt.core.client.JavaScriptException: (TypeError) : Converting circular structure to JSON
at Unknown.yfb(test.vaadin.view.ViewDashletWidgetset-0.js)
at Unknown.Uj(test.vaadin.view.ViewDashletWidgetset-0.js)
at Unknown.Lj(test.vaadin.view.ViewDashletWidgetset-0.js)
at Unknown.tj(test.vaadin.view.ViewDashletWidgetset-0.js)
at Unknown.sj(test.vaadin.view.ViewDashletWidgetset-0.js)
at Unknown.eval(test.vaadin.view.ViewDashletWidgetset-0.js)
at Unknown.wrapFn(http://localhost:8380/o3-parts-web/angular-dashlet/js/polyfills.js?cache=false)
at Unknown.invokeTask(http://localhost:8380/o3-parts-web/angular-dashlet/js/polyfills.js?cache=false)
at Unknown.runTask(http://localhost:8380/o3-parts-web/angular-dashlet/js/polyfills.js?cache=false)
at Unknown.ZoneTask.invoke(http://localhost:8380/o3-parts-web/angular-dashlet/js/polyfills.js?cache=false)
Jgb @ test.vaadin.view.ViewDashletWidgetset-0.js:formatted:60233uhb @ test.vaadin.view.ViewDashletWidgetset-0.js:formatted:33851thb @ test.vaadin.view.ViewDashletWidgetset-0.js:formatted:16817iZd @ test.vaadin.view.ViewDashletWidgetset-0.js:formatted:5172iCb @ test.vaadin.view.ViewDashletWidgetset-0.js:formatted:62420wj @ test.vaadin.view.ViewDashletWidgetset-0.js:formatted:16980Uj @ test.vaadin.view.ViewDashletWidgetset-0.js:formatted:27567Lj @ test.vaadin.view.ViewDashletWidgetset-0.js:formatted:15246tj @ test.vaadin.view.ViewDashletWidgetset-0.js:formatted:13234sj @ test.vaadin.view.ViewDashletWidgetset-0.js:formatted:28285(anonymous function) @ test.vaadin.view.ViewDashletWidgetset-0.js:formatted:22140wrapFn @ zone.js:855ZoneDelegate.invokeTask @ zone.js:262Zone.runTask @ zone.js:151ZoneTask.invoke @ zone.js:332

Without zone.js in the same page, Vaadin portlet works well.

Any idea why zone.js could generate this error?

Thanks
Diego

[JiaLiPassion]

could you provide a repo or plunker to reproduce the issue?

[dcabrera22]

Hello.
I couldn't share on plunker (vaadin use java)
I send you a zip with the code (with maven compile) and a link to test in our test server.
http://o3case.ideasoft.biz/test/?debug=true

To compile and run with maven:
mvn clean package
mvn jetty:run

I hope you could help me.
Thank you
Diego

test.zip

[JiaLiPassion]

I think the reason is that the JSON.stringify will convert a object which has the eventhandler as ZoneTask, and JSON.stringify ZoneTask will cause circular structure error.
Because the test.vaadin.view.ViewDashletWidgetset-0.js is generated, so I don't know how to modify it...., if the JSON convert part in vaadin can be customized, maybe this issue can be resolved, but I don't think there is anything can be done in zone.js now.

[dcabrera22]

Hello. Thanks for answer.
I could change vaadin compilation to generate better js.
You could see here: http://o3case.ideasoft.biz/test/?debug=true

Another thing I try was..... comment the patchTimer for the "timeout" in zone.js.
And it's look that vaadin work well for a while. And doesn't see any problem in angular app.

Thanks again.
Regards
Diego

[JiaLiPassion]

@dcabrera22, thanks for the reply, and If you can modify the generator, maybe you can do some check when stringify ZoneTask.

[dcabrera22]

Hello.
Which generator? vaadin generator? I don't touch the vaadin generator. I only could change the "vaadin-maven-plugin" in the pom.xml to say vaadin that generate script with more detailed.

Or do you say touch something in the zone.js?

[JiaLiPassion]

@dcabrera22 , I will make a PR to add toJSON to ZoneTask, hope it can resolve your issue.

[dcabrera22]

Excelent!!
Works in my little example. http://o3case.ideasoft.biz/test/?debug=true

Do you know when release this? in witch version?
Thanks a lot.
Regards
Diego