Invalid sourcemaps in dist/

[Lucas-C]

Q&A (please complete the following information)

• OS: Windows
• Browser: NA
• Version: latest (master branch)
• Method of installation: NA
• Swagger-UI version: latest (master branch)
• Swagger/OpenAPI version: NA

Describe the bug you're encountering

The .map files provided in the dist/ folder seem to be invalid, based on sourcemap-validator

To reproduce...

Steps to reproduce the behavior:

1. Install the sourcemap-validate command:
   npm install -g git+https://github.com/Lucas-C/sourcemap-validator.git
2. Execute the following command in this repo:
   sourcemap-validate dist/swagger-ui-bundle.js dist/swagger-ui-bundle.js.map

Expected behavior

Validation OK

Additional context or thoughts

Using sourcemap-validate I tested that the Validation OK message appears up to tag v3.3.0. Starting from tag v3.4.0 the error appears.

I found about this error in springfox/springfox#3114, because my Firefox browser could not load the sourcemaps correctly.

Based on the package-lock.json in this repo I cannot pinpoint exactly what version of webpack-sources it is using, but this error may be due to a nasty bug broke sourcemaps it generated before version 1.4.1

[Lucas-C]

Here is the stacktrace I get by the way :

$ sourcemap-validate swagger-ui-bundle.js swagger-ui-bundle.js.map
C:\Users\lucas_cimon\AppData\Roaming\npm\node_modules\sourcemap-validator\index.js:155
          throw new Error(errMsg);
          ^

Error: Warning: mismatched names
Expected: root || 'root' || 'root' || "root" || "root"
Got: (fun || (funct || (funct || (funct || (funct
Original Line: (function webpackUniversalModuleDefinition(root, factory) {
Mapping: 1:10→1:0 "root" in webpack:///webpack/universalModuleDefinition
    at C:\Users\lucas_cimon\AppData\Roaming\npm\node_modules\sourcemap-validator\index.js:155:17
    at Array.forEach (<anonymous>)
    at SourceMapConsumer_eachMapping [as eachMapping] (C:\Users\lucas_cimon\AppData\Roaming\npm\node_modules\sourcemap-validator\node_modules\source-map\lib\source-map\source-map-consumer.js:570:10)
    at validate (C:\Users\lucas_cimon\AppData\Roaming\npm\node_modules\sourcemap-validator\index.js:92:12)
    at Object.<anonymous> (C:\Users\lucas_cimon\AppData\Roaming\npm\node_modules\sourcemap-validator\index.js:166:5)
    at Module._compile (module.js:643:30)
    at Object.Module._extensions..js (module.js:654:10)
    at Module.load (module.js:556:32)
    at tryModuleLoad (module.js:499:12)
    at Function.Module._load (module.js:491:3)