diff --git a/index.bs b/index.bs
index b68e004..f402248 100644
--- a/index.bs
+++ b/index.bs
@@ -2320,19 +2320,17 @@ The result of parsing the blocklist at a {{URL}} |url| is a [=list=]
of {{USBBlocklistEntry}} objects produced by the following algorithm:
1. Fetch |url| and let |contents| be its body, decoded as UTF-8.
- 1. Let |lines| be the result of invoking
- {{String/split(separator, limit)}} on |contents| with separator
- '\n'
.
+ 1. Let |lines| be the result of [=strictly splitting=] |contents| starting
+ from the beginning of |contents| on code point '\n'
.
1. Let |blocklist| be an empty [=list=].
1. [=list/For each=] |line| of |lines|:
- 1. Let |commentBegin| be the result of invoking
- |line|.{{String/indexOf()}} with '#'
.
- 1. If |commentBegin| is not -1, set |line| to the result of invoking
- |line|.{{String/substring()}} with 0 and |commentBegin|.
- 1. Set |line| to the result of |line|.{{String/trimEnd()}}.
- 1. Let |components| be the result of invoking
- |line|.{{String/split(separator, limit)}} with separator
- ':'
.
+ 1. Set |line| to the result of [=collecting a sequence of code points=]
+ not equal to '#'
from |line| starting from the beginning
+ of |line|.
+ 1. Set |line| to the result of [=stripping leading and trailing ASCII
+ whitespace=] from |line|.
+ 1. Let |components| be the result of [=strictly splitting=] |line|
+ starting from the beginning of |line| on code point ':'
.
1. If the [=list/size=] of |components| is not 2 or 3,
[=iteration/continue=].
1. Let |idVendor| be the result of invoking