In response to this query: https://twitter.com/grorgwork/status/738486146313773057
NOTE: I have one week to fix simple non-destabilising bugs, so this is just a list of possibilities. You should always file real bugs at bugs.webkit.org :)
Text-decoration-style: dashed / dotted rendered as solid https://twitter.com/alwillis/status/738494533885911040 FIXED: http://trac.webkit.org/changeset/201777
Multiple selectors break keyframes animation https://bugs.webkit.org/show_bug.cgi?id=158199 FIXED: http://trac.webkit.org/changeset/201818
mix-blend-mode https://twitter.com/bdc/status/737703208634712064 FIXED: http://trac.webkit.org/changeset/202022
SVG in CSS url shouldn't need a namespace i.e. data:image/svg,<svg> should work
More accurately declare the memory use of WebGL, so garbage collection might decide to free unused resources sooner
Items on the Flexbugs list https://twitter.com/jensimmons/status/738490353716695041 https://github.com/philipwalton/flexbugs - items 1, 9, 11 and 14 (the min-width wrapping one was mentioned by multiple people -> https://bugs.webkit.org/show_bug.cgi?id=136041)
Unfortunately flexbox is a bit too big of a task to tackle this week.
CSS4 :focus-within https://twitter.com/cookiecrook/status/739871163090796545
"Snap points don't work well on iOS" https://twitter.com/Tjaadvd/status/739854468943077376
fieldset { display: flex; } https://twitter.com/tylershuster/status/738842560030855168
Inline SVG disappears in iOSand Safari when a CSS filter is applied https://twitter.com/derekjohnson/status/738720786723266560
Enabling Max Pixel Ratio causes apps to render to quarter of the screen on iOS https://twitter.com/willeastcott/status/738710571869196288
SVG Animation (SMIL) doesn't work on second run https://twitter.com/TobiReif/status/738693060708732928
max-width:100%;height:auto on an inline SVG with width/height attributes doesn't take the smaller than its height https://twitter.com/tigt_/status/738549772810899456
Outline hover issues https://twitter.com/spiralganglion/status/738519708069040128
Can't use SVG fragment as a CSS image https://twitter.com/vampaz/status/738497803962454016
box-shadow on element inside multi-column doesn't draw outside column boundary https://twitter.com/hexalys/status/738500054961377282
show control chars in Text L3 https://twitter.com/gregwhitworth/status/738497256278478850
distributed elements not rendering when parent visibility is initially display:none and then toggled https://twitter.com/Paul_Kinlan/status/739885190093373441
transform-origin on SVG inconsistent between Chrome & FF, wrong in both https://twitter.com/LeaVerou/status/740332939729326080 http://dabblet.com/gist/3cf3b55af3e9d99521b843b945055b5d
SVG Sprites and font icons https://twitter.com/LaurentGoderre/status/740372059910471680 http://laurentgoderre.github.io/svg-sprite-demo/
WebGL fail if major perf caveat https://twitter.com/dmikis/status/740433672357187585
overflow: -webkit-paged-x https://twitter.com/dauwhe/status/738495239372083200 (already done, but that lead to....)
box-decoration-break: clone https://twitter.com/dauwhe/status/738517262550863873 (some people are never happy!!! :)
Scrolling with a modal twitter popup https://twitter.com/wottpal/status/738837077555617792 (I couldn't reproduce this)
WebMIDI https://twitter.com/marcosc/status/739634104266674176
in https://twitter.com/tjoekbezoer/status/738657666084524032 (rniwa has followed up)inline
innerHeight with Mobile Safari's shrinking url bar https://twitter.com/xaviervia/status/738647846954602497 (some people seem to want to keep the behaviour)
scrollTop for body with overflow: auto on scroll is 0/undefined. Scroll events trigger https://twitter.com/shshaw/status/738586745772482564
img onload event is fired upon receiving a 301 https://twitter.com/jordan_thomas/status/738584892120780800
Fixed position interaction broken with WKWebView when scrollView.bounce is false https://twitter.com/dpogue/status/738493137182543872
Make touch scrolling work everywhere for overflow https://twitter.com/jaffathecake/status/738498811593641984
Allowing CSS animations to start from current element transformation. https://twitter.com/MRWUT4/status/738746817312083969
Text is different in landscape and portrait https://twitter.com/thijs/status/739847855339384832
Playing video into canvas https://twitter.com/andrevenancio/status/738496522883502081
font-variant-numeric https://twitter.com/handcoding/status/738947956045283328