PNG captcha image doesn't load

NEW
Unassigned

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()

4 years ago
4 years ago

People

(Reporter: jrmuizel, Unassigned)

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(Not tracked)

Details

(Whiteboard: [gfx-noted])

Attachments

(1 attachment)

(Reporter)

Description

4 years ago
Created attachment 8611427 [details]
out.png

I ran into the attached png on forum. It doesn't load in FF but works in Chrome and Preview.
(Reporter)

Comment 1

4 years ago
Glen, do you mind taking a look at what's happening here?
Flags: needinfo?(glennrp+bmo)
I cannot read the attached file with any of my tools other than pngcheck (which doesn't decompress the IDAT chunk). pngcrush, pngtest, imagemagick all built with libpng16 report "libpng error: IDAT: incorrect data check." Downgrading pngtest to libpng12 from libpng16 doesn't change anything.  The error occurs in row 49, which is the final (bottom) row of the 320x50 image.

Evidently chrome is ignoring zlib errors.
Flags: needinfo?(glennrp+bmo)
Whiteboard: [gfx-noted]
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