postcss
diff --git a/‎lib/map-generator.js‎
Lines changed: 3 additions & 2 deletions b/‎lib/map-generator.js‎
Lines changed: 3 additions & 2 deletions
diff --git a/‎test/map.test.ts‎
Lines changed: 14 additions & 0 deletions b/‎test/map.test.ts‎
Lines changed: 14 additions & 0 deletions
@@ -75,9 +75,10 @@ class MapGenerator {
         }
       }
     } else if (this.css) {
+      let annotation = '/*# sourceMappingURL='
       let startIndex
-      while ((startIndex = this.css.lastIndexOf('/*#')) !== -1) {
-        let endIndex = this.css.indexOf('*/', startIndex + 3)
+      while ((startIndex = this.css.lastIndexOf(annotation)) !== -1) {
+        let endIndex = this.css.indexOf('*/', startIndex + annotation.length)
         if (endIndex === -1) break
         while (startIndex > 0 && this.css[startIndex - 1] === '\n') {
           startIndex--
 
@@ -693,6 +693,20 @@ test('generates correct inline map and multiple comments', () => {
   match(result.css, /a {}\nb {}\n\/\*# sourceMappingURL=/)
 })
 
+test('keeps non-annotation comments with empty processor', () => {
+  let css = '/*#region layout */\na {}\n/*#endregion */\n'
+  let result = postcss().process(css, { from: undefined })
+
+  is(result.css, css)
+})
+
+test('clears the annotation but keeps other comments after it', () => {
+  let css = 'a {}\n/*# sourceMappingURL=a.css.map */\n/*#endregion */\n'
+  let result = postcss().process(css, { from: undefined })
+
+  is(result.css, 'a {}\n/*#endregion */\n')
+})
+
 test('generates correct sources with empty processor', () => {
   let result = postcss().process('a {} /*hello world*/', {
     from: 'a.css',
Original file line number	Diff line number	Diff line change
`@@ -75,9 +75,10 @@ class MapGenerator {`
`75`	`75`	`}`
`76`	`76`	`}`
`77`	`77`	`} else if (this.css) {`
	`78`	`+ let annotation = '/*# sourceMappingURL='`
`78`	`79`	`let startIndex`
`79`		`- while ((startIndex = this.css.lastIndexOf('/*#')) !== -1) {`
`80`		`- let endIndex = this.css.indexOf('*/', startIndex + 3)`
	`80`	`+ while ((startIndex = this.css.lastIndexOf(annotation)) !== -1) {`
	`81`	`+ let endIndex = this.css.indexOf('*/', startIndex + annotation.length)`
`81`	`82`	`if (endIndex === -1) break`
`82`	`83`	`while (startIndex > 0 && this.css[startIndex - 1] === '\n') {`
`83`	`84`	`startIndex--`