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Learn how to solve the `ResizeObserver loop limit exceeded` error when using Vaadin and Vis.js by setting proper container styles in your project.
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This video is based on the question https://stackoverflow.com/q/70488492/ asked by the user 'Tonsic' ( https://stackoverflow.com/u/2836301/ ) and on the answer https://stackoverflow.com/a/70488493/ provided by the user 'Tonsic' ( https://stackoverflow.com/u/2836301/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Fixing the ResizeObserver loop limit exceeded Error in Vaadin with Vis.js

When working with libraries like Vaadin and Vis.js to create interactive web applications, developers can sometimes encounter frustrating error messages. One such issue is the ResizeObserver loop limit exceeded notification that appears in the browser. This message can be alarming, especially after spending hours on debugging and making changes to your codebase.

Understanding the Problem

The ResizeObserver loop limit exceeded error generally occurs when the ResizeObserver is stuck inside a loop, continuously trying to calculate sizes without converging on a solution. This can happen in scenarios where changes in the dimensions of elements are causing continuous updates.

In this guide, we will go through a specific case where this error arises from integrating Vis.js within a Vaadin application and how we can remedy it.

Our Project Setup

Before diving into the solution, let's take a look at the context of our project:

Vis-network.js: 9.1.0

Chrome Browser: 96.0.4664.110

Spring Boot: 2.6.2-SNAPSHOT

Vaadin Spring Boot Starter: 14.7.7

Node: v14.17.3

Java: 16.0.1

Gradle: 7.1

Having the proper setup ensures that our dependencies work effectively together. However, as you build your components, such as adding Vis.js to a Vaadin application, it is crucial to set the correct dimensions for those components to avoid the error message.

The Solution

Step 1: Set the Style for Your Container

After numerous attempts and troubleshooting, the solution to the ResizeObserver loop limit exceeded error was relatively straightforward: set a style for the container, explicitly defining its size. This can be done in two primary ways:

Option 1: Setting Styles in Java

You can use Java code to define these styles dynamically in your application:

[[See Video to Reveal this Text or Code Snippet]]

Option 2: Defining Styles in CSS

Alternatively, you can add the styles directly in your CSS file for better separation of concerns:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Pass the Container to Vis.js

With the container styled, ensure that it is correctly referenced when initializing the Vis.js network object:

[[See Video to Reveal this Text or Code Snippet]]

This snippet should reside in your JavaScript code, which will initialize the network graph using the specified container.

Conclusion

Encountering the ResizeObserver loop limit exceeded error can be quite vexing, especially when you're focused on delivering a seamless user experience. However, by ensuring that your containers have explicit dimensions, you can dramatically reduce the likelihood of running into this issue in your Vaadin and Vis.js integration.

By sharing this approach, I hope to provide clarity and assistance to anyone facing the same obstacle, including my future self. Happy coding, and may your graphs be ever responsive!