Added source-map-loader to the Next Webpack config to pass through the source maps from the compiles Slate libraries. (#3445)

package.json

@@ -83,6 +83,7 @@
     "slate-history": "*",
     "slate-hyperscript": "*",
     "slate-react": "*",
+    "source-map-loader": "^0.2.4",
     "typescript": "^3.7.2"
   }
 }

site/next.config.js

@@ -20,4 +20,12 @@ module.exports = {
 
     return pages
   },
+  webpack: config => {
+    config.module.rules.push({
+      test: /\.js$/,
+      use: ['source-map-loader'],
+      enforce: 'pre',
+    })
+    return config
+  },
 }

yarn.lock

@@ -3095,6 +3095,13 @@ async-sema@3.0.0:
   resolved "https://registry.yarnpkg.com/async-sema/-/async-sema-3.0.0.tgz#9e22d6783f0ab66a1cf330e21a905e39b3b3a975"
   integrity sha512-zyCMBDl4m71feawrxYcVbHxv/UUkqm4nKJiLu3+l9lfiQha6jQ/9dxhrXLnzzBXVFqCTDwiUkZOz9XFbdEGQsg==
 
+async@^2.5.0:
+  version "2.6.3"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.6.3.tgz#d72625e2344a3656e3a3ad4fa749fa83299d82ff"
+  integrity sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==
+  dependencies:
+    lodash "^4.17.14"
+
 asynckit@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
@@ -9598,6 +9605,14 @@ source-list-map@^2.0.0:
   resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-2.0.1.tgz#3993bd873bfc48479cca9ea3a547835c7c154b34"
   integrity sha512-qnQ7gVMxGNxsiL4lEuJwe/To8UnK7fAnmbGEEH8RpLouuKbeEm0lhbQVFIrNSuB+G7tVrAlVsZgETT5nljf+Iw==
 
+source-map-loader@^0.2.4:
+  version "0.2.4"
+  resolved "https://registry.yarnpkg.com/source-map-loader/-/source-map-loader-0.2.4.tgz#c18b0dc6e23bf66f6792437557c569a11e072271"
+  integrity sha512-OU6UJUty+i2JDpTItnizPrlpOIBLmQbWMuBg9q5bVtnHACqw1tn9nNwqJLbv0/00JjnJb/Ee5g5WS5vrRv7zIQ==
+  dependencies:
+    async "^2.5.0"
+    loader-utils "^1.1.0"
+
 source-map-resolve@^0.5.0, source-map-resolve@^0.5.2:
   version "0.5.2"
   resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.5.2.tgz#72e2cc34095543e43b2c62b2c4c10d4a9054f259"