Bootstrap and widgetset loading timeout

Vaadin 6 / 7 / 8
1

Hello Devs!

I’m maintaining a legacy project that uses Vaadin 7.6.5. I have two questions:

1, How can i set the widgetset loading timeout? I saw that there’s a hardcoded 15000 value in the vaadinBootstrap.js. I can change it if I edit the vaadinBootstrap.js file in the vaadin-server-7.6.5.jar but it’s not a nice way. Does Vaadin have some kind of configuration property for this?

2, How can i change the bootstrap loading timeout? And what is the default value? In BootstrapHandler.java i saw a code that throws an alert if failed to load the bootstrap javascript:
"if (!window.vaadin) alert(“Failed to load the bootstrap javascript:…”
Can you explain the process of loading vaadinBootstrap.js and where can i set the timeout?

Thank you for your response in advance!

2

Before solving that, I would ask: why is the bootstrap js loading taking over 15s? That seems extreme

3

This anomaly happens very rarely, but it’s annoying nonetheless. I suspect that there might be a network problem, but it’s time consuming to investigate, so setting a different timeout might be a quicker solution. Although it’s true that it might not eliminate the problem, but i’d give it a try.

4

The 15000 is hardcoded. You can override it yourself, there’s no shame in that.

5

The bootstrap loading isn’t really something you can do much about unless you want to embed the UI instead of serving it as standalone

6

But anyway, agreed extending the timeout is unlikely to resolve the actual issue. If it’s not loading, it’s not loading.