@cypress/webpack-preprocessor is incorrectly detecting exports-loader as ts-loader and adding a compilerOptions config option #32265
Description
Current behavior
After upgrading @cypress/webpack-preprocessor from 6.0.2 to 6.0.3 cypress fails with a webpack error with invalid compilerOptions field.
exports-loader ends with ts-loader which causes this issue.
This is the line of code: https://github.com/cypress-io/cypress/blame/f000167e8f4cc5cc83bbf1ad18675dd0d37cd73f/npm/webpack-batteries-included-preprocessor/index.js#L25
The following change fixes the issue for me:
-loader.includes('ts-loader')
+loader === 'ts-loader'Possibly related: #31590
cc @chrisbreiding @AtofStryker
Error: Webpack Compilation Error
Module build failed (from ./node_modules/exports-loader/dist/cjs.js):
ValidationError: Invalid options object. Exports Loader has been initialized using an options object that does not match the API schema.
- options has an unknown property 'compilerOptions'. These properties are valid:
object { exports, type? }
at handle (project/packages/editor/node_modules/@cypress/webpack-preprocessor/dist/index.js:296:23)
Desired behavior
No response
Test code to reproduce
But with a loader called exports-loader.
Cypress Version
14.5.4
Node version
v22.18.0
Operating System
macOS 15.6
Debug Logs
cypress:webpack ts-loader detected: overriding tsconfig to use sourceMap:true, inlineSourceMap:false, inlineSources:false, downlevelIteration:true +0ms
ValidationError: Invalid options object. Exports Loader has been initialized using an options object that does not match the API schema.
- options has an unknown property 'compilerOptions'. These properties are valid:
object { exports, type? } +0msOther
No response