Linking to Confluence text anchors by default opens up a new tab, not staying on existing window

[Bastesque]

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Describe the bug
If I provide a link to a text anchor in draw.io for Confluence (Cloud) it opens up a new window. My setting for links is always "Automatic" because text anchor links used to function within the same window. Not it seems like it switched to "Open in New window". I manually changed the settings to "Open in This Window" but I wanted you to know that there might be a bug somewhere. Would be great if the default linking behavior for text anchors would go back to "Open in This Window" again.

To Reproduce
Steps to reproduce the behavior:

1. Insert a text anchor link in a draw.io diagram in Confluence Cloud
2. Click on the link
3. New window opens and it doesn't jump to the text anchor

Expected behavior
Stay inside the existing window and jump to the header that was linked when haveing "Automatic" link behavior active.

Screenshots
It is hard to provide a screenshot for this behavior.

draw.io version (In the Help->About menu of the draw.io editor):

• draw.io version 30.0.1 for Confluence Cloud

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Browser Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

I tested the problem in incognito/private mode with all browser extensions switched off, write "yes" below:

Additional context
Add any other context about the problem here.

[draw-io-triage-bot]

👋 Thank you for opening this issue!

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Summary: The user reports that text anchor links in draw.io for Confluence Cloud (v30.0.1) now open in a new tab/window instead of navigating within the same window when the link behavior is set to 'Automatic,' which is a regression from previous behavior.

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📝 Additional Information Needed

To help us investigate this more effectively, could you please provide:

• OS: The OS field was left as the placeholder template text '[e.g. iOS]' and not filled in.
• Browser and Browser Version: The browser and browser version fields were left as placeholder template text and not filled in.
• Incognito/Private mode testing: The user did not confirm whether they tested the issue in incognito/private mode with all browser extensions switched off.

We also have some questions:

• Can you confirm which OS and browser (including version) you are using when experiencing this issue?
• Have you tested this in incognito/private mode with all browser extensions disabled to rule out extension interference?
• Can you clarify what you mean by 'text anchor link'? Are you linking to a Confluence page heading anchor (e.g., a URL like pagename#heading-name), or are you using a different type of anchor?
• When you say it 'used to function within the same window,' can you recall approximately when this behavior changed? Was it after a specific draw.io or Confluence update?
• When you set the link behavior to 'Open in This Window,' does the text anchor link then correctly navigate to the anchor on the same page, or does it still fail to jump to the correct heading?

📋 Bug Report Template

**Environment:**
- draw.io version: [e.g., web app / desktop 24.x.x / Confluence plugin]
- Browser (if web): [e.g., Chrome 120, Firefox 121]
- OS: [e.g., Windows 11, macOS 14, Ubuntu 22.04]

**Steps to Reproduce:**
1. Go to ...
2. Click on ...
3. See error

**Expected Behavior:**
What you expected to happen.

**Actual Behavior:**
What actually happened.

**Screenshots/Files:**
If applicable, add screenshots or attach the .drawio file.

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_{🤖 This is an automated response to help with initial triage. A human maintainer will review this issue. If you've provided all the requested information, no further action is needed - we'll get back to you soon!}