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CORS error while loading file from github

lovebug

lovebug

Active Coder
Hi, sorry to bother you guys but I've tried to find an answer to this but I'm not having any luck

So my website has a Javascript based bbc micro computer emulator (js-beeb) which loads my game project file from github
Well that is it used to load my game project file from github but now it fails and when I checked the browser console log I see something about CORS

I really don't know how to fix this, is it possible to fix this error ?

Heres the link to my website page that is having the issue

And the error message
Code: 
Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://github.com/LoveBug2084/LadyBug/raw/main/src/Lady%20Bug.ssd. (Reason: CORS header ‘Access-Control-Allow-Origin’ does not match ‘’).

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://github.com/LoveBug2084/LadyBug/raw/main/src/Lady%20Bug.ssd. (Reason: CORS request did not succeed). Status code: (null)

As a temporary fix I have added a single line of PHP code to copy the file from github to my website but would prefer to load the file from the external github site if possible

New temporary fix

Thanks
 
Last edited:
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Hey @lovebug,

No question will ever bother us. Code Forum is meant to be a resource for helping with questions like these.

But yes, so CORS (Cross Origin Resource Sharing) is a system that defines how the application domain interacts with resources hosted on other domains. It's pretty much a security feature.,

Now I believe this occurs when you're trying to fetch a resoruce, I have never really experienced it outside those parameters but normally this can be find within the fetch function.

Just to make sure, are you using Node.js or javascript?
 
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js-beeb isnt written by me but is a free open source bbc micro computer emulator available on github
github.com

GitHub - mattgodbolt/jsbeeb: Javascript BBC micro emulator

Javascript BBC micro emulator. Contribute to mattgodbolt/jsbeeb development by creating an account on GitHub.
github.com github.com

you can specify the filename in the url with disc=

this used to work fine but just recently when I compiled a new game build and tested it on my site I found I get a CORS error
 
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lovebug said:
js-beeb isnt written by me but is a free open source bbc micro computer emulator available on github
github.com

GitHub - mattgodbolt/jsbeeb: Javascript BBC micro emulator

Javascript BBC micro emulator. Contribute to mattgodbolt/jsbeeb development by creating an account on GitHub.
github.com github.com

you can specify the filename in the url with disc=

this used to work fine but just recently when I compiled a new game build and tested it on my site I found I get a CORS error
Click to expand...
Okay gotcha, sorry to ask but can you tell me where you entered the URL/filename? I want to take a look at the function.
 
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My apologies for the delayed response, lovebug. It's been quite a busy week.
lovebug said:
Thanks, i'll have to look through the javascript to try and find the function that processes the parameters in the url
its the disc= one that i'll look for

https://lovebyte.eu.org/jsbeeb-main/ ?autoboot & noseek & disc=https://github.com/LoveBug2084/LadyBug/raw/main/src/Lady Bug.ssd
Click to expand...
lovebug said:
So it turns out that what used to work now doesn't but there is an alternate url that does work (for now anyway)


Thanks again for your time 👍👍👍👍👍
Click to expand...
Do you still get the CORS error or has that disappeared as well?
 
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