Update package.json to includes the latest PrettyCSS library that includes my fix.

Author: jwang1919

locales/en/translation.json

@@ -123,7 +123,6 @@
       "selector-missing": "Start every block of CSS with a selector, such as an element name or class name.\nTry: p {\n  color: red;\n}",
       "block-expected": "Start a block using { after your selector.\nTry: {{error}} {",
       "extra-tokens-after-value": "The {{token}} at the end of this line doesn’t belong there.",
-      "extra-commas": "Looks like you have extra commas on this line",
       "illegal-token-after-combinator": "After a + or > in a selector, you need to specify the name of another element, class, or ID",
       "invalid-token": "This line doesn't look like valid CSS.",
       "invalid-token-in-selector": "The {{token}} on this line doesn’t belong here.",

package.json

@@ -97,7 +97,7 @@
   "bugs": "https://trello.com/b/ONaFg6wh/popcode",
   "license": "MIT",
   "dependencies": {
-    "PrettyCSS": "^0.3.13",
+    "PrettyCSS": "^0.3.15",
     "ajv": "^5.2.2",
     "array-to-sentence": "^1.1.0",
     "bowser": "^1.4.5",

src/validations/css/prettycss.js

@@ -71,21 +71,6 @@ const errorMap = {
           column: previousLine.length - 1,
         };
       }
-      if (errorToken.content === ',') {
-        if (/,(?=\s*,)/.test(thisLine)) {
-          return {
-            reason: 'extra-commas',
-            row: lineNumber - 1,
-            column: errorToken.charNum,
-          };
-        }
-        if (
-          errorToken.charNum - 1 !== /,/.exec(thisLine).index &&
-          endsWith(trim(thisLine), ';')
-        ) {
-          return null;
-        }
-      }
     }
 
     return ({

test/unit/validations/css.js

@@ -87,16 +87,6 @@ test('missing semicolon at end of block', validationTest(
   {reason: 'missing-semicolon', row: 1},
 ));
 
-test('extra commas in value', validationTest(
-  `p {
-    text-shadow: rgba(0,0,0,0.1) 0 -5px,, rgba(0,0,0,0.1) 0 -1px, \
-     rgba(255,255,255,0.1) 1px 0, rgba(255,255,255,0.1) 0 1px, \
-     rgba(0,0,0,0.1) -1px -1px, rgba(255,255,255,0.1) 1px 1px; 
-  }`,
-  css,
-  {reason: 'extra-commas', row: 1},
-));
-
 test('missing semicolon within block', validationTest(
   `
     p {

yarn.lock

@@ -30,11 +30,11 @@ JSONStream@^1.0.4:
     jsonparse "^1.2.0"
     through ">=2.2.7 <3"
 
-PrettyCSS@^0.3.13:
-  version "0.3.14"
-  resolved "https://registry.yarnpkg.com/PrettyCSS/-/PrettyCSS-0.3.14.tgz#e71372fac131b7333af4c3f64e356e67551b9ba5"
+PrettyCSS@^0.3.15:
+  version "0.3.15"
+  resolved "https://registry.yarnpkg.com/PrettyCSS/-/PrettyCSS-0.3.15.tgz#5f7e4690b9957737972b87ce950095a762b085d3"
   dependencies:
-    option-parser "~0.1.3"
+    option-parser "~1.0.0"
 
 abbrev@1:
   version "1.1.0"
@@ -5943,9 +5943,9 @@ optimist@>=0.3.4, optimist@^0.6.1:
     minimist "~0.0.1"
     wordwrap "~0.0.2"
 
-option-parser@~0.1.3:
-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/option-parser/-/option-parser-0.1.3.tgz#cfe33c0fe95f805d9c0ac79e91224bbfa26a9c17"
+option-parser@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/option-parser/-/option-parser-1.0.0.tgz#9d470f969b7cb0cd2bb5b75e998be9961ba57206"
 
 optionator@^0.8.1, optionator@^0.8.2:
   version "0.8.2"