Ionic Lab - Refused to apply style because its MIME type ('text/html') is not a supported

Ionic Framework ionic-v3
1

I don’t know what a hell is that…I was coding and suddenly I noticed that console.log was’t working anymore. So, I found this on the terminal window and I swear that I did’t touched on the index.html not webpack:

Error: Debug Failure.
at typeToString (/Users/me/Projects/myProject/node_modules/typescript/lib/typescript.js:28777:22)
at checkVariableLikeDeclaration (/Users/me/Projects/myProject/node_modules/typescript/lib/typescript.js:44893:219)
at checkPropertyDeclaration (/Users/me/Projects/myProject/node_modules/typescript/lib/typescript.js:43383:13)
at checkSourceElement (/Users/me/Projects/myProject/node_modules/typescript/lib/typescript.js:46700:28)
at Object.forEach (/Users/me/Projects/myProject/node_modules/typescript/lib/typescript.js:1506:30)
at checkClassDeclaration (/Users/me/Projects/myProject/node_modules/typescript/lib/typescript.js:45765:16)
at checkSourceElement (/Users/me/Projects/myProject/node_modules/typescript/lib/typescript.js:46779:28)
at Object.forEach (/Users/me/Projects/myProject/node_modules/typescript/lib/typescript.js:1506:30)
at checkSourceFileWorker (/Users/me/Projects/myProject/node_modules/typescript/lib/typescript.js:46862:20)
at checkSourceFile (/Users/me/Projects/myProject/node_modules/typescript/lib/typescript.js:46842:13)

…Ok, So I decided to stop and ionic serve --lab and start over. Now, I can’t lift the app again…it’s display this on the console window…

Refused to apply style from ‘http://localhost:8100/build/main.css’ because its MIME type (‘text/html’) is not a supported stylesheet MIME type, and strict MIME checking is enabled.
?ionicplatform=android:49 GET http://localhost:8100/build/vendor.js net::ERR_ABORTED
?ionicplatform=android:52 GET http://localhost:8100/build/main.js net::ERR_ABORTED
?ionicplatform=ios&ionicstatusbarpadding=true:1 Refused to apply style from ‘http://localhost:8100/build/main.css’ because its MIME type (‘text/html’) is not a supported stylesheet MIME type, and strict MIME checking is enabled.
?ionicplatform=ios&ionicstatusbarpadding=true:49 GET http://localhost:8100/build/vendor.js net::ERR_ABORTED
?ionicplatform=ios&ionicstatusbarpadding=true:52 GET http://localhost:8100/build/main.js net::ERR_ABORTED
?ionicplatform=android&http://localhost:8100/ionic-lab&http://localhost:8100/ionic-lab:1 Refused to apply style from ‘http://localhost:8100/build/main.css’ because its MIME type (‘text/html’) is not a supported stylesheet MIME type, and strict MIME checking is enabled.
?ionicplatform=android&http://localhost:8100/ionic-lab&http://localhost:8100/ionic-lab:49 GET http://localhost:8100/build/vendor.js net::ERR_ABORTED
?ionicplatform=android&http://localhost:8100/ionic-lab&http://localhost:8100/ionic-lab:52 GET http://localhost:8100/build/main.js net::ERR_ABORTED
?ionicplatform=ios&ionicstatusbarpadding=true:49 GET http://localhost:8100/build/vendor.js net::ERR_ABORTED
?ionicplatform=ios&ionicstatusbarpadding=true:1 Refused to execute script from ‘http://localhost:8100/build/vendor.js’ because its MIME type (‘text/html’) is not executable, and strict MIME type checking is enabled.
?ionicplatform=android&http://localhost:8100/ionic-lab&http://localhost:8100/ionic-lab:49 GET http://localhost:8100/build/vendor.js net::ERR_ABORTED
?ionicplatform=android&http://localhost:8100/ionic-lab&http://localhost:8100/ionic-lab:1 Refused to execute script from ‘http://localhost:8100/build/vendor.js’ because its MIME type (‘text/html’) is not executable, and strict MIME type checking is enabled.
?ionicplatform=ios&ionicstatusbarpadding=true:52 GET http://localhost:8100/build/main.js net::ERR_ABORTED
?ionicplatform=ios&ionicstatusbarpadding=true:1

2

Same here. It was working 3 days ago. Today this error started after upgrading CLI from 3.19.1 to 3.20.0. I don’t whether that’s the reason or not.

3

Reinstall the typescript…I solved in this way

4

sir i have already using 3.20.0 but still now working?

5

Hi, sorry, any luck with this problem? in my team we’re experiencing this issue…

6

I couldn’t find a proper solution, but I create a new project and moved src folder to new one and then installed the dependencies.

1 Like
7

so it seems the problem is attributable to things like caching or versions.
the solution should be a list of consecutive attempts:

  • relaunch ionic serve,
  • delete the www folder,
  • reinstall plugins and node_modules,
  • re-map the solution on another path in the FS,
  • resinstall node.
    Me and my team (for now) are not experiencing this problem anymore, and each one of us did one of those things.