vue cli - Uncaught SyntaxError: Unexpected token <

Question

I create my project with vue-cli 3.0. Initially it runs ok. But after I -c then npm run serve again, it keep throwing erro

Answer 1

it indicate that the error happened at the first line of app.js, but I check in console the < is actually from index.html. Which means somewhere along the process, the webpack thought index.html should be transpile as app.js.

In my case it was the contrary : I add an url rewrite issue. A to much broad rule made that my js and css assets were redirected to index.html, that's why I add a < at the beginning of my js or css files.

So if it's also the case for you, the problem is in your backend (Java Spring and javax.Filter for the urlrewrite for me). So if it can help someone, here's the correct part of urlrewrite.xml :

  /assets/**
  -
 

 
   /index.html
     -
 

 
   /**
     /index.html