830152 - stroke-dasharray="0 1" (or "0 <anything-nonzero>") paints dashes at corners when it shouldn't, at certain zoom levels (including the default one)

Status: RESOLVED DUPLICATE of bug 418880

(Core :: SVG, defect)

Description

[Daniel Holbert [:dholbert]]

Attachment: testcase 1

STR:
  Load attached testcase.

EXPECTED RESULTS: No red should be visible (because in my <dasharray> specification, I've specified "0" as the lengths of all the dashes) 

ACTUAL RESULTS: Red rectangles (bits of 'stroke') are visible, at each corner of the rect.

Interestingly, if you zoom in or zoom out, the red notches will go away at most zoom levels. (though if I hold Ctrl and hit '+' 4 times, or 6 times, or 8 times, then I see red squares at each corner. Similarly, if I hold Ctrl and hit '-' 4 times, then I see red squares at each corner.)



I get EXPECTED RESULTS from Opera 12.12 & Chrome 25.0.1364.29 dev.

I get ACTUAL RESULTS from Nightly:
 Mozilla/5.0 (X11; Linux x86_64; rv:21.0) Gecko/20130113 Firefox/21.0

Comment 1

[Daniel Holbert [:dholbert]]

I see the same behavior in Firefox 4.0, FWIW:
 Mozilla/5.0 (X11; Linux x86_64; rv:2.0) Gecko/20100101 Firefox/4.0

And Firefox 3.6 is even more broken -- it fails to parse any stroke-dasharray value that has more than than 1 entry.

So, this isn't a regression (or it's not a recent one, at least).

Comment 2

[Robert Longson [:longsonr]]

In 3.6 stroke-dasharray had to be comma separated IIRC.

Comment 3

[Robert Longson [:longsonr]]

Seems rather like a duplicate of bug 304795, no?

Comment 4

[Robert Longson [:longsonr]]

Make that bug 418880.

Comment 5

[Daniel Holbert [:dholbert]]

Yup -- I think the testcase here is basically the same as the lower-right rect in the testcase on bug 418880. Thanks!