Sourcemaps Are Not Valid OTB

[chadhietala]

Steps To Reproduce

1. ember new my-app --yarn=true
2. ember build --environment=production
3. yarn add sourcemap-validator --dev
4. require("sourcemap-validator")(fs.readFileSync('./dist/assets/app-SOMEHASH.js', './dist/assets/app-SOMEHASH.map'))
5. Get the following error.

Error: Warning: mismatched names
Expected: exports || 'exports' || 'exports' || "exports" || "exports"
Got: define( || define('s || define('s || define('s || define('s
Original Line: define('sm-test/app', ['exports', 'ember', 'sm-test/resolver', 'ember-load-initializers', 'sm-test/config/environment'], function (exports, _ember, _resolver, _emberLoadInitializers, _environment) {
Mapping: 2:124→1:0 "exports" in sm-test/app.js

I have also noticed that out of the box all the col numbers are 0.

---

Ember Versions

ember-cli: 2.14.0
http_parser: 2.7.0
node: 7.9.0
v8: 5.5.372.43
uv: 1.11.0
zlib: 1.2.11
ares: 1.10.1-DEV
modules: 51
openssl: 1.0.2k
icu: 58.2
unicode: 9.0
cldr: 30.0.3
tz: 2016j
os: darwin x64

Yarn Version

0.27.5

[stefanpenner]

I wonder if they went bad post babel

[stefanpenner]

i suspect it's something else. Maybe keep removing stuff until it works again

[stefanpenner]

Another idea is to run the validation within broccoli concat and see which inputs are breaking (or if broccoli concat itself is breaking them)

[stefanpenner]

Also the above looks like a great test to add to ember-cli's test suite.

[Turbo87]

@stefanpenner I don't think that it belongs in the test suite of Ember CLI since this is likely an issue in either the Babel or UglifyJS addon

[Turbo87]

it seems that @chadhietala has figured out that Babel sourcemaps are broken: babel/babel#6008