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Ensure backward compatibility for headers.extra

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This commit is contained in:
Alex Kocharin 2022-06-10 20:44:21 +03:00
parent 77f1c17c6d
commit 174a1d12b6
2 changed files with 5 additions and 2 deletions
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5
lib/zlib/deflate.js
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@ -1738,9 +1738,12 @@ const deflate = (strm, flush) => {
beg = 0; beg = 0;
left -= copy; left -= copy;
} }
// JS specific: s.gzhead.extra may be TypedArray or Array for backward compatibility
// TypedArray.slice and TypedArray.from don't exist in IE10-IE11
let gzhead_extra = new Uint8Array(s.gzhead.extra);
// zmemcpy(s->pending_buf + s->pending, // zmemcpy(s->pending_buf + s->pending,
// s->gzhead->extra + s->gzindex, left); // s->gzhead->extra + s->gzindex, left);
s.pending_buf.set(s.gzhead.extra.subarray(s.gzindex, s.gzindex + left), s.pending); s.pending_buf.set(gzhead_extra.subarray(s.gzindex, s.gzindex + left), s.pending);
s.pending += left; s.pending += left;
//--- HCRC_UPDATE(beg) ---// //--- HCRC_UPDATE(beg) ---//
if (s.gzhead.hcrc && s.pending > beg) { if (s.gzhead.hcrc && s.pending > beg) {

2
test/gzip_specials.js
View file

@ -38,7 +38,7 @@ describe('Gzip special cases', () => {
os: 15, os: 15,
name: 'test name', name: 'test name',
comment: 'test comment', comment: 'test comment',
extra: new Uint8Array([ 4, 5, 6 ]) extra: [ 4, 5, 6 ]
} }
}); });
deflator.push(data, true); deflator.push(data, true);