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Allow SP in Byte Sequences #1322

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Allow SP in Byte Sequences #1322

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3 changes: 2 additions & 1 deletion draft-ietf-httpbis-header-structure.md
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Expand Up @@ -501,7 +501,7 @@ The ABNF for a Byte Sequence is:

~~~ abnf
sf-binary = ":" *(base64) ":"
base64 = ALPHA / DIGIT / "+" / "/" / "="
base64 = ALPHA / DIGIT / "+" / "/" / "=" / SP
~~~

A Byte Sequence is delimited with colons and encoded using base64 ({{!RFC4648}}, Section 4). For example:
Expand Down Expand Up @@ -949,6 +949,7 @@ Given an ASCII string as input_string, return a Byte Sequence. input_string is m
3. If there is not a ":" character before the end of input_string, fail parsing.
4. Let b64_content be the result of consuming content of input_string up to but not including the first instance of the character ":".
5. Consume the ":" character at the beginning of input_string.
6. Remove all SP from input_string.
6. If b64_content contains a character not included in ALPHA, DIGIT, "+", "/" and "=", fail parsing.
7. Let binary_content be the result of Base 64 Decoding {{!RFC4648}} b64_content, synthesizing padding if necessary (note the requirements about recipient behavior below).
8. Return binary_content.
Expand Down