@vercel/next - npm Package Compare versions

Comparing version 3.9.3 to 3.9.4

dist/sourcemapped.js

@@ -6,3 +6,3 @@ "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.stringifySourceMap = exports.fileToSource = exports.raw = exports.sourcemapped = void 0;
+exports.removeInlinedSourceMap = exports.stringifySourceMap = exports.fileToSource = exports.raw = exports.sourcemapped = void 0;
 const convert_source_map_1 = __importDefault(require("convert-source-map"));
@@ -54,3 +54,3 @@ const fs_extra_1 = __importDefault(require("fs-extra"));
     const sourcemap = await getSourceMap(content, fullFilePath);
-    const cleanContent = convert_source_map_1.default.removeComments(content);
+    const cleanContent = removeInlinedSourceMap(content);
     return sourcemap
@@ -92,1 +92,33 @@ ? new webpack_sources_1.SourceMapSource(cleanContent, sourceName, sourcemap)
 exports.stringifySourceMap = stringifySourceMap;
+// Based on https://github.com/thlorenz/convert-source-map/blob/f1ed815b4edacfa9c3c5552dd342e71a3cffbb0a/index.js#L4 (MIT license)
+// Groups: 1: media type, 2: MIME type, 3: charset, 4: encoding, 5: data.
+const SOURCE_MAP_COMMENT_REGEX = /^\s*?\/[/*][@#]\s+?sourceMappingURL=data:(((?:application|text)\/json)(?:;charset=([^;,]+?)?)?)?(?:;(base64))?,(.*?)$/gm;
+function isValidSourceMapData(encoding, data) {
+    if (encoding !== 'base64') {
+        // Unknown encoding. I think the comment is short (e.g. URL) if it's not
+        // base64 encoded, so let's keep it to be safe.
+        return false;
+    }
+    // Remove any spaces and "*/" of the source map comment. They should not be
+    // considered as a part of the source map data.
+    data = data.replace(/\s/g, '').replace(/\*\//g, '');
+    // If it's an invalid base64 string, it must be a sourceMappingURL
+    // inside a template literal like the follwoing.
+    // https://github.com/webpack-contrib/style-loader/blob/16e401b17a39544d5c8ca47c9032f02e2b60d8f5/src/runtime/styleDomAPI.js#L35C1-L40C1
+    return /^[a-zA-Z0-9+=/]+$/.test(data);
+}
+/*
+ * Removes sourceMappingURL comments from a string.
+ */
+function removeInlinedSourceMap(source) {
+    for (const m of source.matchAll(SOURCE_MAP_COMMENT_REGEX)) {
+        // Check if it's certainly a sourceMappingURL in a comment, not a part
+        // of JavaScript code (e.g. template literal).
+        if (!isValidSourceMapData(m[4], m[5])) {
+            continue;
+        }
+        source = source.replace(m[0], '');
+    }
+    return source;
+}
+exports.removeInlinedSourceMap = removeInlinedSourceMap;

package.json

 {
   "name": "@vercel/next",
-  "version": "3.9.3",
+  "version": "3.9.4",
   "license": "Apache-2.0",
@@ -29,3 +29,3 @@ "main": "./dist/index",
     "@types/webpack-sources": "3.2.0",
-    "@vercel/build-utils": "6.8.2",
+    "@vercel/build-utils": "6.8.3",
     "@vercel/nft": "0.22.5",
@@ -32,0 +32,0 @@ "@vercel/routing-utils": "2.2.1",

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