Vite self signed certificate error when calling local API - vuejs3

Question

I created a simple Vue3 app, and I'm trying to call another local API (on a different port) on my machine. To better replicate the production server environment, I'm making a call to a relative API path. That means I need to use a proxy on the vite server to forward the API request to the correct localhost port for my local development. I defined my vite proxy like this in my vite.config.ts file:
import { fileURLToPath, URL } from "node:url";
import { defineConfig } from "vite";
import vue from "#vitejs/plugin-vue";
import basicSsl from '#vitejs/plugin-basic-ssl'
// https://vitejs.dev/config/
export default defineConfig({
plugins: [
basicSsl(),
vue()
],
resolve: {
alias: {
"#": fileURLToPath(new URL("./src", import.meta.url)),
},
},
server: {
https: true,
proxy: {
'/api': {
target: 'https://localhost:44326', // The API is running locally via IIS on this port
changeOrigin: true,
rewrite: (path) => path.replace(/^\/api/, '') // The local API has a slightly different path
}
}
}
});
I'm successfully calling my API from the Vue app, but I get this error in the command line where I'm running the vite server:
5:15:14 PM [vite] http proxy error:
Error: self signed certificate
at TLSSocket.onConnectSecure (node:_tls_wrap:1530:34)
at TLSSocket.emit (node:events:526:28)
at TLSSocket._finishInit (node:_tls_wrap:944:8)
at TLSWrap.ssl.onhandshakedone (node:_tls_wrap:725:12)
I already tried to add the basic ssl package, and I don't particularly want to install the other NPM package that is in the top voted answer. Why does the vite server complain about a self signed certificate when I'm trying to call another API on my local machine? What can I do to fix this?

Answer 1

you could try secure: false
server: {
https: true,
proxy: {
'/api': {
target: 'https://localhost:44326', // The API is running locally via IIS on this port
changeOrigin: true,
secure: false,
rewrite: (path) => path.replace(/^\/api/, '') // The local API has a slightly different path
}
}
}
the set of full options is available at https://github.com/http-party/node-http-proxy#options
Options
httpProxy.createProxyServer supports the following options:
target: url string to be parsed with the url module
forward: url string to be parsed with the url module
agent: object to be passed to http(s).request (see Node's https agent and http agent objects)
ssl: object to be passed to https.createServer()
ws: true/false, if you want to proxy websockets
xfwd: true/false, adds x-forward headers
secure: true/false, if you want to verify the SSL Certs
toProxy: true/false, passes the absolute URL as the path (useful for proxying to proxies)
prependPath: true/false, Default: true - specify whether you want to prepend the target's path to the proxy path
ignorePath: true/false, Default: false - specify whether you want to ignore the proxy path of the incoming request (note: you will have to append / manually if required).
localAddress: Local interface string to bind for outgoing connections
changeOrigin: true/false, Default: false - changes the origin of the host header to the target URL
preserveHeaderKeyCase: true/false, Default: false - specify whether you want to keep letter case of response header key
auth: Basic authentication i.e. 'user:password' to compute an Authorization header.
hostRewrite: rewrites the location hostname on (201/301/302/307/308) redirects.
autoRewrite: rewrites the location host/port on (201/301/302/307/308) redirects based on requested host/port. Default: false.
protocolRewrite: rewrites the location protocol on (201/301/302/307/308) redirects to 'http' or 'https'. Default: null.
cookieDomainRewrite: rewrites domain of set-cookie headers. Possible values:
false (default): disable cookie rewriting
String: new domain, for example cookieDomainRewrite: "new.domain". To remove the domain, use cookieDomainRewrite: "".
Object: mapping of domains to new domains, use "*" to match all domains.
For example keep one domain unchanged, rewrite one domain and remove other domains:
cookieDomainRewrite: {
"unchanged.domain": "unchanged.domain",
"old.domain": "new.domain",
"*": ""
}
cookiePathRewrite: rewrites path of set-cookie headers. Possible values:
false (default): disable cookie rewriting
String: new path, for example cookiePathRewrite: "/newPath/". To remove the path, use cookiePathRewrite: "". To set path to root use cookiePathRewrite: "/".
Object: mapping of paths to new paths, use "*" to match all paths.
For example, to keep one path unchanged, rewrite one path and remove other paths:
cookiePathRewrite: {
"/unchanged.path/": "/unchanged.path/",
"/old.path/": "/new.path/",
"*": ""
}
headers: object with extra headers to be added to target requests.
proxyTimeout: timeout (in millis) for outgoing proxy requests
timeout: timeout (in millis) for incoming requests
followRedirects: true/false, Default: false - specify whether you want to follow redirects
selfHandleResponse true/false, if set to true, none of the webOutgoing passes are called and it's your responsibility to appropriately return the response by listening and acting on the proxyRes event
buffer: stream of data to send as the request body. Maybe you have some middleware that consumes the request stream before proxying it on e.g. If you read the body of a request into a field called 'req.rawbody' you could restream this field in the buffer option:
'use strict';
const streamify = require('stream-array');
const HttpProxy = require('http-proxy');
const proxy = new HttpProxy();
module.exports = (req, res, next) => {
proxy.web(req, res, {
target: 'http://localhost:4003/',
buffer: streamify(req.rawBody)
}, next);
};