fix(compiler): condense whitespaces in static class attributes (#4432)

fix #4251
2021-09-07 13:01:17 -03:00
parent 5d262e08d5
commit b8653d390a
2 changed files with 76 additions and 0 deletions
--- a/packages/compiler-core/src/parse.ts
+++ b/packages/compiler-core/src/parse.ts
@@ -716,6 +716,17 @@ function parseAttributes(
    }

    const attr = parseAttribute(context, attributeNames)
+
+    // Trim whitespace between class
+    // https://github.com/vuejs/vue-next/issues/4251
+    if (
+      attr.type === NodeTypes.ATTRIBUTE &&
+      attr.value &&
+      attr.name === 'class'
+    ) {
+      attr.value.content = attr.value.content.replace(/\s+/g, ' ').trim()
+    }
+
    if (type === TagType.Start) {
      props.push(attr)
    }