126398 2014-01-02 13:03:10 -0800 <img src=foo.svg> where foo.svg is an SVG file that contains text looks blurry 2022-07-15 16:47:32 -0700 1 1 1 Unclassified WebKit SVG 528+ (Nightly build) Unspecified Unspecified NEW https://rawgithub.com/espadrine/gh-badges/ccd6f1c7abc996e529366ca6b870c3a804271599/sheet.html InRadar P2 Normal --- 93471 68469 1 mathias webkit-unassigned ap bfulgham dino krit mathias sabouhallawa thaddee.tyl webkit-bug-importer zimmermann oldest_to_newest 963850 0 mathias 2014-01-02 13:03:10 -0800 1. Open http://rawgithub.com/espadrine/gh-badges/ccd6f1c7abc996e529366ca6b870c3a804271599/img/dependencies-none.svg. You should see something like this: http://i.imgur.com/C1l3cX5.png This is perfect. 2. Now, open a page that includes this SVG file as an image, through `<img src=…>`, such as <https://rawgithub.com/espadrine/gh-badges/ccd6f1c7abc996e529366ca6b870c3a804271599/sheet.html>. 3. On that page, the SVG image has some rendering problems: the text is really blurry. Screenshot: http://i.imgur.com/xL5vxSK.png 963851 1 mathias 2014-01-02 13:08:06 -0800 Relevant Chromium bug tickets: https://code.google.com/p/chromium/issues/detail?id=331385 https://code.google.com/p/chromium/issues/detail?id=331387 It has been suggested there that this might be related to zooming. However, I still see the blurry effect even without zooming in or out (i.e. 100% zoom) on a retina display. 963869 2 krit 2014-01-02 13:54:39 -0800 I think it is a resolution problem in combination with retina displays. You use SVG Filters to change the color of the text. Do you see the same problem without using filters on the text? 964014 3 mathias 2014-01-02 23:09:18 -0800 (In reply to comment #2) > I think it is a resolution problem in combination with retina displays. Sounds about right. This is what a Chromium engineer said (https://code.google.com/p/chromium/issues/detail?id=331387#c5): > My guess is that the retina is rendering the SVG at non-retina res, and zooming it up 2x. So it's still a "zoom", just implicit (in the same way that a non-retina PNG is resampled 2x by the browser). > You use SVG Filters to change the color of the text. Do you see the same problem without using filters on the text? Removing the SVG filter applied to the text indeed removes the (unintended) blur. FWIW, Firefox seemed to have the same issue, but it’s fixed now. https://bugzilla.mozilla.org/show_bug.cgi?id=600207 964016 4 krit 2014-01-02 23:16:16 -0800 (In reply to comment #3) > (In reply to comment #2) > > I think it is a resolution problem in combination with retina displays. > > Sounds about right. This is what a Chromium engineer said (https://code.google.com/p/chromium/issues/detail?id=331387#c5): > > > My guess is that the retina is rendering the SVG at non-retina res, and zooming it up 2x. So it's still a "zoom", just implicit (in the same way that a non-retina PNG is resampled 2x by the browser). > > > You use SVG Filters to change the color of the text. Do you see the same problem without using filters on the text? > > Removing the SVG filter applied to the text indeed removes the (unintended) blur. > > FWIW, Firefox seemed to have the same issue, but it’s fixed now. https://bugzilla.mozilla.org/show_bug.cgi?id=600207 The filter blurring is a side effect of bug 93471. Let's see if that bug fixes the issue. It also depends if <img> gets the right resolution information. 986385 5 mathias 2014-03-03 09:57:42 -0800 The old test case URL doesn’t work anymore — here’s the updated link: http://rawgithub.com/badges/gh-badges/ccd6f1c7abc996e529366ca6b870c3a804271599/sheet.html 1884412 6 bfulgham 2022-07-15 16:47:21 -0700 This continues to be an issue in Safari 8.5 years later. 1884413 7 webkit-bug-importer 2022-07-15 16:47:32 -0700 <rdar://problem/97100938>