try latest version

package-lock.json

@@ -38,7 +38,7 @@
         "jsdom": "^15.2.1",
         "kleur": "^4.1.5",
         "locate-character": "^2.0.5",
-        "magic-string": "^0.25.9",
+        "magic-string": "^0.30.0",
         "mocha": "^7.0.0",
         "periscopic": "^3.0.4",
         "puppeteer": "^2.0.0",
@@ -234,6 +234,15 @@
         "@types/estree": "*"
       }
     },
+    "node_modules/@rollup/plugin-commonjs/node_modules/magic-string": {
+      "version": "0.25.9",
+      "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.25.9.tgz",
+      "integrity": "sha512-RmF0AsMzgt25qzqqLc1+MbHmhdx0ojF2Fvs4XnOqz2ZOBXzzkEwc/dJQZCYHAn7v1jbVOjAZfK8msRn4BxO4VQ==",
+      "dev": true,
+      "dependencies": {
+        "sourcemap-codec": "^1.4.8"
+      }
+    },
     "node_modules/@rollup/plugin-json": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/@rollup/plugin-json/-/plugin-json-4.0.1.tgz",
@@ -302,6 +311,15 @@
         "rollup-pluginutils": "^2.6.0"
       }
     },
+    "node_modules/@rollup/plugin-replace/node_modules/magic-string": {
+      "version": "0.25.9",
+      "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.25.9.tgz",
+      "integrity": "sha512-RmF0AsMzgt25qzqqLc1+MbHmhdx0ojF2Fvs4XnOqz2ZOBXzzkEwc/dJQZCYHAn7v1jbVOjAZfK8msRn4BxO4VQ==",
+      "dev": true,
+      "dependencies": {
+        "sourcemap-codec": "^1.4.8"
+      }
+    },
     "node_modules/@rollup/plugin-sucrase": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/@rollup/plugin-sucrase/-/plugin-sucrase-3.1.0.tgz",
@@ -3514,12 +3532,15 @@
       }
     },
     "node_modules/magic-string": {
-      "version": "0.25.9",
+      "version": "0.30.0",
-      "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.25.9.tgz",
+      "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.0.tgz",
-      "integrity": "sha512-RmF0AsMzgt25qzqqLc1+MbHmhdx0ojF2Fvs4XnOqz2ZOBXzzkEwc/dJQZCYHAn7v1jbVOjAZfK8msRn4BxO4VQ==",
+      "integrity": "sha512-LA+31JYDJLs82r2ScLrlz1GjSgu66ZV518eyWT+S8VhyQn/JL0u9MeBOvQMGYiPk1DBiSN9DDMOcXvigJZaViQ==",
       "dev": true,
       "dependencies": {
-        "sourcemap-codec": "^1.4.8"
+        "@jridgewell/sourcemap-codec": "^1.4.13"
+      },
+      "engines": {
+        "node": ">=12"
       }
     },
     "node_modules/mdn-data": {
@@ -5420,6 +5441,15 @@
           "requires": {
             "@types/estree": "*"
           }
+        },
+        "magic-string": {
+          "version": "0.25.9",
+          "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.25.9.tgz",
+          "integrity": "sha512-RmF0AsMzgt25qzqqLc1+MbHmhdx0ojF2Fvs4XnOqz2ZOBXzzkEwc/dJQZCYHAn7v1jbVOjAZfK8msRn4BxO4VQ==",
+          "dev": true,
+          "requires": {
+            "sourcemap-codec": "^1.4.8"
+          }
         }
       }
     },
@@ -5479,6 +5509,17 @@
       "requires": {
         "magic-string": "^0.25.2",
         "rollup-pluginutils": "^2.6.0"
+      },
+      "dependencies": {
+        "magic-string": {
+          "version": "0.25.9",
+          "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.25.9.tgz",
+          "integrity": "sha512-RmF0AsMzgt25qzqqLc1+MbHmhdx0ojF2Fvs4XnOqz2ZOBXzzkEwc/dJQZCYHAn7v1jbVOjAZfK8msRn4BxO4VQ==",
+          "dev": true,
+          "requires": {
+            "sourcemap-codec": "^1.4.8"
+          }
+        }
       }
     },
     "@rollup/plugin-sucrase": {
@@ -7923,12 +7964,12 @@
       }
     },
     "magic-string": {
-      "version": "0.25.9",
+      "version": "0.30.0",
-      "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.25.9.tgz",
+      "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.0.tgz",
-      "integrity": "sha512-RmF0AsMzgt25qzqqLc1+MbHmhdx0ojF2Fvs4XnOqz2ZOBXzzkEwc/dJQZCYHAn7v1jbVOjAZfK8msRn4BxO4VQ==",
+      "integrity": "sha512-LA+31JYDJLs82r2ScLrlz1GjSgu66ZV518eyWT+S8VhyQn/JL0u9MeBOvQMGYiPk1DBiSN9DDMOcXvigJZaViQ==",
       "dev": true,
       "requires": {
-        "sourcemap-codec": "^1.4.8"
+        "@jridgewell/sourcemap-codec": "^1.4.13"
       }
     },
     "mdn-data": {

package.json

@@ -148,7 +148,7 @@
     "jsdom": "^15.2.1",
     "kleur": "^4.1.5",
     "locate-character": "^2.0.5",
-    "magic-string": "^0.25.9",
+    "magic-string": "^0.30.0",
     "mocha": "^7.0.0",
     "periscopic": "^3.0.4",
     "puppeteer": "^2.0.0",