cors Archives - IT Nursery

authentication, Programming

IT Nursery

Set cookies for cross origin requests

How to share cookies cross origin? More specifically, how to use the Set-Cookie header in combination with the header Access-Control-Allow-Origin? Here’s an explanation ...

June 3, 2022
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javascript, Programming

IT Nursery

What’s to stop malicious code from spoofing the “Origin” header to exploit CORS?

The way I understand it, if a client-side script running on a page from foo.com wants to request data from bar.com, in the ...

June 2, 2022
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javascript, Programming

IT Nursery

Origin null is not allowed by Access-Control-Allow-Origin

I have made a small xslt file to create an html output called weather.xsl with code as follows:  <xsl:stylesheet version="1.0" ...

June 1, 2022
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jquery, Programming

IT Nursery

XMLHttpRequest Origin null is not allowed Access-Control-Allow-Origin for file:/// to file:/// (Serverless)

I’m trying to create a website that can be downloaded and run locally by launching its index file. All the files are local, ...

May 30, 2022
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cors, Programming

IT Nursery

What is an opaque response, and what purpose does it serve?

I tried to fetch the URL of an old website, and an error happened: Fetch API cannot load http://xyz. No 'Access-Control-Allow-Origin' header is ...

May 29, 2022
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PHP, Programming

IT Nursery

Cross-Origin Request Headers(CORS) with PHP headers

I have a simple PHP script that I am attempting a cross-domain CORS request: <?php header("Access-Control-Allow-Origin: *"); header("Access-Control-Allow-Headers: *"); ... Yet I still ...

May 29, 2022
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json, Programming

IT Nursery

Setting Access-Control-Allow-Origin in ASP.Net MVC – simplest possible method

I have a simple actionmethod, that returns some json. It runs on ajax.example.com. I need to access this from another site someothersite.com. If ...

May 27, 2022
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http-headers, Programming

IT Nursery

What exactly does the Access-Control-Allow-Credentials header do?

I’m trying to understand how to use CORS and am confused about what the Access-Control-Allow-Credentials header does. The documentation says Indicates whether or ...

May 26, 2022
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Enabling CORS in Cloud Functions for Firebase

I’m currently learning how to use new Cloud Functions for Firebase and the problem I’m having is that I can’t access the function ...

May 26, 2022
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Origin is not allowed by Access-Control-Allow-Origin

XMLHttpRequest cannot load http://localhost:8080/api/test. Origin http://localhost:3000 is not allowed by Access-Control-Allow-Origin. I read about cross domain ajax requests, and understand the underlying security ...

May 26, 2022
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