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Diffstat (limited to 'src/image/png/reader.go')
| -rw-r--r-- | src/image/png/reader.go | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/image/png/reader.go b/src/image/png/reader.go index 32f78f0ffe..8299df5673 100644 --- a/src/image/png/reader.go +++ b/src/image/png/reader.go @@ -612,6 +612,11 @@ func (d *decoder) readImagePass(r io.Reader, pass int, allocateOnly bool) (image } } case cbG8: + if d.useTransparent { + // Match error from Go 1.7 and earlier. + // Go 1.9 will decode this properly. + return nil, chunkOrderError + } copy(gray.Pix[pixOffset:], cdat) pixOffset += gray.Stride case cbGA8: |