socket.io in client page SyntaxError: Unexpected token <

[Ahmed Mostafa]

I am running tests using mocha using Zombie as a headless web browser ... doing a great job thank you

problem is , my page has an include for socket.io client 

<script type="text/javascript" src="/socket.io/socket.io.min.js"></script>

when my test is redirected to this page .. it fails with this error 

SyntaxError: Unexpected token <

i checked it multiple times ! 

i used socket.io.min.js and i used socket.io.js both introduce the same error and it's making me angry !

what is the problem ? and how can i solve it ?

[Ahmed Mostafa]

    at Contextify.sandbox.run (node_modules/zombie/node_modules/jsdom/node_modules/contextify/lib/contextify.js:12:24)

    at Object.window._evaluate (node_modules/zombie/lib/zombie/window.js:187:25)

    at Object.HTML.languageProcessors.javascript (node_modules/zombie/lib/zombie/scripts.js:23:21)

    at Object.define.proto._eval (node_modules/zombie/node_modules/jsdom/lib/jsdom/level2/html.js:1475:47)

    at Object.loaded (node_modules/zombie/lib/zombie/scripts.js:74:23)

    at node_modules/zombie/node_modules/jsdom/lib/jsdom/level2/html.js:73:20

    at Object.item.check (node_modules/zombie/node_modules/jsdom/lib/jsdom/level2/html.js:345:11)

    at node_modules/zombie/node_modules/jsdom/lib/jsdom/level2/html.js:363:12

    at node_modules/zombie/lib/zombie/eventloop.js:238:18

    at Object._onImmediate (node_modules/zombie/lib/zombie/eventloop.js:143:11)

so here is a full dump of the error

[Assaf Arkin]

“Unexpected token <“ happens when the server sends back an HTML document (often 404 or 500 error page) instead of JavaScript.

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