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so I have been having trouble with grabbing information from a device that is interfaced with via https due to the fact that it has an invalid security certificate. I know the device is to be trusted and I don't have access to the server-side so I can't change it. I was wondering if there was any way to set up an XMLHttpRequest object in Javascript to just ignore an invalid SSL certificate and just grab the information anyway. As it is now it seems to just reject the certificate and stop. Thanks.
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To bypass SSL certificate validation for local and test servers, you can pass the -k or --insecure option to the Curl command. This option explicitly tells Curl to perform "insecure" SSL connections and file transfers. Curl will ignore any security warnings about an invalid SSL certificate and accept it as valid.
The easiest solution to resolve these errors is to use the “rejectUnauthorized” option shown below. However, this method is unsafe because it disables the server certificate verification, making the Node app open to MITM attack.
To ignore invalid and self-signed certificate checks on Curl, use the -k or --insecure command-line option. This option allows Curl to perform "insecure" SSL connections and skip SSL certificate checks while you still have SSL encrypted communications.
There is nothing special needed to open HTTPS URLs via XMLHttpRequest. As long as the certificate and request are valid, it will work.
Well I had found this solution before but it didn't work, this was because I was still using actual XMLHttpRequest though. When creating it using this statement:
httpreq = new ActiveXObject("Msxml2.ServerXMLHTTP.3.0");
There is a method called setOption that is opened up for use:
httpreq.setOption(2, 13056);
With those parameters, the request now ignores the invalid certificate and grabs the information anyway. If I understand correctly this won't work with any non-Microsoft technology trying to run the script, but that's ok for the scope of my project.
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No, there isn't. XMLHTTPRequest doesn't allow you to override that. Being able to override SSL security might make sense in your case, but if you think about it, it would be a bad idea in general. You'd never want to allow arbitrary javascript code on the internet to connect to a supposedly secure service that the js host (the browser) knows has a possible MITM issue.
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