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HTML: forbid data: and javascript: URLs in the <base> element #41731
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32 changes: 32 additions & 0 deletions
32
html/semantics/document-metadata/the-base-element/base-data.html
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| <!-- Please update base-javascript.html together with this --> | ||
| <!DOCTYPE html> | ||
| <meta charset="utf-8"> | ||
| <title><base> and data: URLs</title> | ||
| <script src=/resources/testharness.js></script> | ||
| <script src=/resources/testharnessreport.js></script> | ||
| <base href="data:/,test"> | ||
| <base href="https://example.com/"> | ||
| <div id=log></div> | ||
| <script> | ||
| test(() => { | ||
| const link = document.createElement("a"); | ||
| link.href = "blah"; | ||
| assert_equals(link.href, new URL("blah", document.URL).href); | ||
| }, "First <base> has a data: URL so fallback is used"); | ||
|
|
||
| test(() => { | ||
| document.querySelector("base").remove(); | ||
| const link = document.createElement("a"); | ||
| link.href = "blah"; | ||
| assert_equals(link.href, new URL("blah", "https://example.com/").href); | ||
| }, "First <base> is removed so second is used"); | ||
|
|
||
| test(() => { | ||
| const base = document.createElement("base"); | ||
| base.href = "data:/,more-test"; | ||
| document.head.prepend(base); | ||
| const link = document.createElement("a"); | ||
| link.href = "blah"; | ||
| assert_equals(link.href, new URL("blah", document.URL).href); | ||
| }, "Dynamically inserted first <base> has a data: URL so fallback is used"); | ||
| </script> | ||
32 changes: 32 additions & 0 deletions
32
html/semantics/document-metadata/the-base-element/base-javascript.html
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| <!-- Please update base-data.html together with this --> | ||
| <!DOCTYPE html> | ||
| <meta charset="utf-8"> | ||
| <title><base> and javascript: URLs</title> | ||
| <script src=/resources/testharness.js></script> | ||
| <script src=/resources/testharnessreport.js></script> | ||
| <base href="javascript:/,test"> | ||
| <base href="https://example.com/"> | ||
| <div id=log></div> | ||
| <script> | ||
| test(() => { | ||
| const link = document.createElement("a"); | ||
| link.href = "blah"; | ||
| assert_equals(link.href, new URL("blah", document.URL).href); | ||
| }, "First <base> has a javascript: URL so fallback is used"); | ||
|
|
||
| test(() => { | ||
| document.querySelector("base").remove(); | ||
| const link = document.createElement("a"); | ||
| link.href = "blah"; | ||
| assert_equals(link.href, new URL("blah", "https://example.com/").href); | ||
| }, "First <base> is removed so second is used"); | ||
|
|
||
| test(() => { | ||
| const base = document.createElement("base"); | ||
| base.href = "javascript:/,more-test"; | ||
| document.head.prepend(base); | ||
| const link = document.createElement("a"); | ||
| link.href = "blah"; | ||
| assert_equals(link.href, new URL("blah", document.URL).href); | ||
| }, "Dynamically inserted first <base> has a javascript: URL so fallback is used"); | ||
| </script> |
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Does having a comment instead of doctype on the first line put this into quirks mode?
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No it doesn't. In IE6 it did.