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Use table for comparison examples #3371

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Use table to display examples
nidhijaju Dec 18, 2025
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nidhijaju Dec 18, 2025
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code font the URIs
nidhijaju Dec 18, 2025
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55 changes: 10 additions & 45 deletions draft-ietf-httpbis-no-vary-search.md
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Expand Up @@ -371,51 +371,16 @@ Due to how the application/x-www-form-urlencoded parser canonicalizes query stri

So, for example, given any non-default value for `No-Vary-Search`, such as `No-Vary-Search: key-order`, we will have the following equivalences:

{: newline="true"}
<dl>
<dt>
<tt>https://example.com</tt><br>
<tt>https://example.com/?</tt>
</dt>
<dd>A null query is parsed the same as an empty string</dd>

<dt>
<tt>https://example.com/?a=x</tt><br>
<tt>https://example.com/?%61=%78</tt>
</dt>
<dd>Parsing performs percent-decoding</dd>

<dt>
<tt>https://example.com/?a=é</tt><br>
<tt>https://example.com/?a=%C3%A9</tt>
</dt>
<dd>Parsing performs percent-decoding</dd>

<dt>
<tt>https://example.com/?a=%f6</tt><br>
<tt>https://example.com/?a=%ef%bf%bd</tt>
</dt>
<dd>Both values are parsed as U+FFFD (�)</dd>

<dt>
<tt>https://example.com/?a=x&&&&</tt><br>
<tt>https://example.com/?a=x</tt>
</dt>
<dd>Parsing splits on <tt>&</tt> and discards empty strings</dd>

<dt>
<tt>https://example.com/?a=</tt><br>
<tt>https://example.com/?a</tt>
</dt>
<dd>Both parse as having an empty string value for <tt>a</tt></dd>

<dt>
<tt>https://example.com/?a=%20</tt><br>
<tt>https://example.com/?a=+</tt><br>
<tt>https://example.com/?a= &</tt>
</dt>
<dd><tt>+</tt> and <tt>%20</tt> are both parsed as U+0020 SPACE</dd>
</dl>
| URI A | URI B | Reason for Equivalence |
|---------------------------------+-------------------------------------+-----------------------------------------------------|
| `https://example.com` | `https://example.com/?` | A null query is parsed the same as an empty string |
| `https://example.com/?a=x` | `https://example.com/?%61=%78` | Parsing performs percent-decoding |
| `https://example.com/?a=é` | `https://example.com/?a=%C3%A9` | Parsing performs percent-decoding |
| `https://example.com/?a=%f6` | `https://example.com/?a=%ef%bf%bd` | Both values are parsed as U+FFFD (�) |
| `https://example.com/?a=x&&&&` | `https://example.com/?a=x` | Parsing splits on `&` and discards empty strings |
| `https://example.com/?a=` | `https://example.com/?a` | Both parse as having an empty string value for `a` |
| `https://example.com/?a=%20` | `https://example.com/?a= &` | `%20` is parsed as U+0020 SPACE |
| `https://example.com/?a=+` | `https://example.com/?a= &` | `+` is parsed as U+0020 SPACE |

# Caching {#caching}

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