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Merged
merged 13 commits into from
Sep 17, 2025
Merged

[WebDriver BiDi] emulate user-agent string #1851

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394a74f
WebDriver BiDi emulated user-agent
sadym-chromium Aug 19, 2025
23e14f0
fix
sadym-chromium Sep 16, 2025
3dc92a8
link
sadym-chromium Sep 16, 2025
2b52d69
Update fetch.bs
sadym-chromium Sep 16, 2025
01d42b1
fixes
sadym-chromium Sep 16, 2025
1c19de8
isomorphic encoded userAgent
sadym-chromium Sep 16, 2025
b677da0
environment default `<code>User-Agent</code>` value
sadym-chromium Sep 16, 2025
0ee1d93
rename
sadym-chromium Sep 16, 2025
2b201e0
fix
sadym-chromium Sep 16, 2025
4076b59
default-user-agent-value accepts environment settings object
sadym-chromium Sep 16, 2025
f47b095
Revert "default-user-agent-value accepts environment settings object"
sadym-chromium Sep 16, 2025
b72fa19
Update fetch.bs
sadym-chromium Sep 16, 2025
7a21971
Update fetch.bs
sadym-chromium Sep 16, 2025
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31 changes: 26 additions & 5 deletions fetch.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -1420,6 +1420,21 @@ downloads. This format of range header value can be set using <a>add a range hea
have this value start with `<code>Mozilla/5.0 (</code>` and be generally modeled after other web
browsers.

<div algorithm>
<p>To get the <a>environment settings object</a> <var>environment</var>'s
<dfn export>environment default `<code>User-Agent</code>` value</dfn>:

<ol>
<li><p>Let <var>userAgent</var> be the <a>WebDriver BiDi emulated User-Agent</a> for
<var>environment</var>.

<li><p>If <var>userAgent</var> is non-null, then return <var>userAgent</var>,
<a>isomorphic encoded</a>.

<li><p>Return the <a>default `<code>User-Agent</code>` value</a>.
</ol>
</div>

<p>The <dfn>document `<code>Accept</code>` header value</dfn> is
`<code>text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8</code>`.

Expand Down Expand Up @@ -5986,11 +6001,17 @@ run these steps:
the <a data-lt="structured field token">token</a> <code>prefetch</code>) in
<var>httpRequest</var>'s <a for=request>header list</a>.

<li><p>If <var>httpRequest</var>'s <a for=request>header list</a>
<a for="header list">does not contain</a> `<code>User-Agent</code>`, then user agents should
<a for="header list">append</a> (`<code>User-Agent</code>`,
<a>default `<code>User-Agent</code>` value</a>) to <var>httpRequest</var>'s
<a for=request>header list</a>.
<li>
<p>If <var>httpRequest</var>'s <a for=request>header list</a> <a
for="header list">does not contain</a> `<code>User-Agent</code>`, then user agents should:

<ol>
<li><p>Let <var>userAgent</var> be <var>httpRequest</var>'s <a for=request>client</a>'s
<a>environment default `<code>User-Agent</code>` value</a>.

<li><p><a for="header list">Append</a> (`<code>User-Agent</code>`, <var>userAgent</var>) to
<var>httpRequest</var>'s <a for=request>header list</a>.
</ol>

<li><p>If <var>httpRequest</var>'s <a for=request>cache mode</a> is "<code>default</code>" and
<var>httpRequest</var>'s <a for=request>header list</a> <a for="header list">contains</a>
Expand Down