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Do not initialize a URLPatternInit member to null in "initialize a URLPattern"#213

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jeremyroman merged 2 commits into
whatwg:mainfrom
jeremyroman:initialize-null-baseurl
Jan 29, 2024
Merged

Do not initialize a URLPatternInit member to null in "initialize a URLPattern"#213
jeremyroman merged 2 commits into
whatwg:mainfrom
jeremyroman:initialize-null-baseurl

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@jeremyroman jeremyroman commented Jan 26, 2024

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It is not valid for the baseURL dictionary member to be null, only either absent or a USVString. Instead, this should be omitted from the dictionary altogether if no string was provided to this algorithm.

Any string which is invalid will fail later on, when it is to be parsed as a URL.

Fixes #204.

  • At least two implementers are interested (and none opposed):
    • Google Chrome
    • n/a (change is simply fixing a bug in a non-controversial way, per this comment)
  • Tests are written and can be reviewed and commented upon at:
    • n/a (this is a fix to how the spec expresses this, but does not represent a behavior change, and existing tests cover this behavior)
  • Implementation bugs are filed:
    • Chromium: n/a (believed to work correctly in Chromium)
    • Gecko: https://bugzilla.mozilla.org/show_bug.cgi?id=1731418 (vendor does not yet implement the spec)
    • WebKit: [no known URLPattern bug] (vendor does not yet implement the spec)
    • Deno: n/a (no reason to believe a change is required)
    • kenchris/urlpattern-polyfill: n/a (no reason to believe a change is required)
  • MDN issue is filed: n/a (change is on a spec detail not expressly documented)
  • The top of this comment includes a clear commit message to use.

(See WHATWG Working Mode: Changes for more details.)


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…LPattern"

It is not valid for the baseURL dictionary member to be null, only
either absent or a USVString. Instead, this should be omitted from the
dictionary altogether if no string was provided to this algorithm.

Any string which is invalid will fail later on, when it is to be parsed
as a URL.

Fixes whatwg#204.
@jeremyroman jeremyroman merged commit c9c56ee into whatwg:main Jan 29, 2024
@jeremyroman jeremyroman deleted the initialize-null-baseurl branch January 29, 2024 15:48
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Loose base URL check can crash URL parser

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