config: Compatible with low-version browsers.

[space-77]

📑 Summary

Brief description about the content of your PR.

Resolves #

📏 Design Decisions

Describe the way your implementation works or what design decisions you made if applicable.

📋 Tasks

Make sure you

• 📖 have read the contribution guidelines
• 💻 have added necessary unit/e2e tests.
• 📓 have added documentation. Make sure MERMAID_RELEASE_VERSION is used for all new features.
• 🦋 If your PR makes a change that should be noted in one or more packages' changelogs, generate a changeset by running pnpm changeset and following the prompts. Changesets that add features should be minor and those that fix bugs should be patch. Please prefix changeset messages with feat:, fix:, or chore:.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 19443a4

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[netlify]

✅ Deploy Preview for mermaid-js ready!

Name	Link
🔨 Latest commit	19443a4
🔍 Latest deploy log	https://app.netlify.com/sites/mermaid-js/deploys/67f32c9b2c9c1f0008eda5da
😎 Deploy Preview	https://deploy-preview-6458--mermaid-js.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/mermaid-js/mermaid@6458

npm i https://pkg.pr.new/mermaid-js/mermaid/@mermaid-js/layout-elk@6458

npm i https://pkg.pr.new/mermaid-js/mermaid/@mermaid-js/mermaid-zenuml@6458

npm i https://pkg.pr.new/mermaid-js/mermaid/@mermaid-js/parser@6458

commit: 19443a4

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 3.86%. Comparing base (ceb8d4c) to head (19443a4).

Files with missing lines	Patch %	Lines
.esbuild/util.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           develop   #6458      +/-   ##
==========================================
- Coverage     3.86%   3.86%   -0.01%     
==========================================
  Files          411     412       +1     
  Lines        43178   43190      +12     
  Branches       664     664              
==========================================
  Hits          1670    1670              
- Misses       41508   41520      +12     

Flag	Coverage Δ
unit	3.86% <0.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
.esbuild/util.ts	0.00% <0.00%> (ø)

... and 1 file with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[argos-ci]

The latest updates on your projects. Learn more about Argos notifications ↗︎

Build	Status	Details	Updated (UTC)
default (Inspect)	✅ Auto-approved build	-	Apr 7, 2025, 1:48 AM

[sidharthv96]

Hi @space-77, can you share if you have tested the updated outputs with any specific browsers?
Also, which browsers are you trying to support? Because, the target parameter will only do limited transpilation.

Note that this is only concerned with syntax features, not APIs. It does not automatically add polyfills for new APIs that are not used by these environments.

From https://esbuild.github.io/api/#target

---

Semi related, We should setup a browserlist query for mermaid, to specify which browsers we support, and lint rules to catch unsupported features.