docs(data-collected): Clarify HTTP header and cookie collection differences (browser/server)

[s1gr1d]

DESCRIBE YOUR PR

Clarifies header collection. Mentioned in this PR:

• HTTP Headers are not sent by default, unless sendDefaultPii is enabled. sentry-javascript#20706

closesgetsentry/sentry-javascript#20706

IS YOUR CHANGE URGENT?

Help us prioritize incoming PRs by letting us know when the change needs to go live.

• Urgent deadline (GA date, etc.):
• Other deadline:
• None: Not urgent, can wait up to 1 week+

SLA

• Teamwork makes the dream work, so please add a reviewer to your PRs.
• Please give the docs team up to 1 week to review your PR unless you've added an urgent due date to it.
  Thanks in advance for your help!

PRE-MERGE CHECKLIST

Make sure you've checked the following before merging your changes:

• Checked Vercel preview for correctness, including links
• PR was reviewed and approved by any necessary SMEs (subject matter experts)
• PR was reviewed and approved by a member of the Sentry docs team

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
sentry-docs	Ready	Preview, Comment	Jun 12, 2026 9:46am

1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
develop-docs	Ignored	Preview	Jun 12, 2026 9:46am

[sfanahata]

Looks good. Nice add!

[inventarSarah]

Looks good to me 🙌

[inventarSarah]

I did not find dataCollection documented on the Options page -- do you know if documenting it is already planned? If not, we should create an issue for it and then also link to it from here -- wdyt?

[chargome]

+1 on waiting with this until documented

[sentry]

Bug: The documentation incorrectly shows the server-side HTTP Headers section for Cloudflare and Deno, where the required Http Integration is unsupported.
_{Severity: LOW}

Suggested Fix

Update the documentation component to conditionally hide the server-side HTTP Headers section for platforms where the Http Integration is not supported, such as javascript.cloudflare and javascript.deno, to align with the behavior of the server-side Cookies section.

Prompt for AI Agent

Review the code at the location below. A potential bug has been identified by an AI
agent. Verify if this is a real issue. If it is, propose a fix; if not, explain why it's
not valid.
Location:
docs/platforms/javascript/common/data-management/data-collected/index.mdx#L44-L49
Potential issue: The documentation for server-side HTTP Headers is incorrectly displayed
for Cloudflare and Deno users. It states that the `Http Integration` captures headers by
default, but this integration is not supported on those platforms. This is inconsistent
with other parts of the documentation, such as the server-side Cookies section, which
correctly hides itself for unsupported platforms, leading to potential confusion for
developers using Cloudflare or Deno.

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity.
It will be closed in 7 days if no further activity occurs.

If this PR is still relevant, please:

• Push new commits, or
• Leave a comment to keep it open

Thank you for your contribution!

[github-actions]

This pull request has been automatically closed due to inactivity.

If you'd like to continue working on this, feel free to reopen the PR or create a new one.