Error occurs when clicking back button in the document - "document not attached"

[devleejb]

What happened:
When clicking the back button in the document, an error message stating "document not attached" is displayed.

What you expected to happen:
Clicking the back button should navigate to the previous page without any error message.

How to reproduce it (as minimally and precisely as possible):

1. Open the document.
2. Perform some actions within the document.
3. Click the back button.

Anything else we need to know?:
The error message occurs consistently whenever the back button is clicked.

Environment:

• Operating system: ALL
• Browser and version: ALL
• CodePair version: ALL

[rappire]

Title

Fix issue with continuous PushPullChanges requests after detaching document

Content

What this PR does / why we need it?

This PR addresses a bug where continuous PushPullChanges requests are sent even after detaching a document, causing errors in the process. The issue occurs when navigating back triggers the document detach process.

In the yorkie-js-sdk, when editing a document, PushPullChanges requests are sent at specified intervals. However, the problem arises when detaching a document in the sdk. Despite the detach operation, the loop responsible for sending PushPullChanges requests is not terminated. As a result, the yorkie server receives requests for a detached document, leading to errors.

Once an error occurs, the loop is terminated, preventing further issues from arising.

Any background context you want to provide?

In the yorkie-js-sdk, detaching a document should ideally stop the process of sending PushPullChanges requests, ensuring that only relevant and active documents trigger these requests.
before sending request change DocumentStatus detached.

What are the relevant tickets?

Checklist

• Added relevant tests or not required
• Didn't break anything

[rappire]

I found a bug and want to fix it, but I couldn't because it's an issue with the yorkie-js-sdk

[devleejb]

Related to #220

[devleejb]

@hackerwins
May I ask for your opinion?

[hackerwins]

I found a bug and want to fix it, but I couldn't because it's an issue with the yorkie-js-sdk

It looks like this will have to be resolved in the JS SDK. and we are working on yorkie-team/yorkie-js-sdk#856.

@jeonghye-choi @rappire
Could we work together?

[rappire]

I want to try to solve this problem, but jeonghye-choi is already in charge, can I work on it?

[devleejb]

@rappire
Sorry for late check. I will assign you.

[sejongk]

As @hackerwins mentioned, this issue should be resolved in the JS SDK.
I think it seems better to work together with @gwbaik9717 in the issue of the JS SDK (yorkie-team/yorkie-js-sdk#856).
cc. @rappire, @devleejb