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Simple API Proxy

This is a simple web API proxy, which can be used to forward API calls from one URI to another, through the node Express web server. I've used this in personal projects to avoid issues with CORS, especially in proof-of-concept designs or quickstarters.

If you see this error in Chrome, this project may help you: alt tag

Prerequisites

Ensure Node is installed. See nodejs.org.

Download

Download this project. The easiest way is to click the "Download Zip" button above: alt tag

Once downloaded, unzip the project.

Installation

Open a command prompt and navigate to the folder where the project was unzipped.

Then, run npm install

Running the proxy server

Run npm start -- --proxy=http://path/to/api

Note the -- option is present to correctly pass parameters to the node script.

For more complex options, the following parameters are available:

--path=/local/path/to/forward/to/api/* - Defaults to /* to forward all calls.
--proxy=http://path/to/api - Required, the path to the web API that you're proxying.
--port=3002 - Defaults to 3002, the port assigned to the proxy.

For example:

Running npm start -- --proxy=http://mywebsite.com/api --port=60001 --path=/api/* would:

  1. Start the proxy server at port 60001.
  2. Forward all calls starting with http://localhost:60001/api to http://mywebsite.com/api.

Making API calls to proxy

Once the proxy is running, you can direct all calls to it rather than another server.

For example, if you were originally issuing a GET request to http://some/other/api/customers to get a list of customers, you would first run a server like this:

npm start -- --proxy=http://some/other/web/api

Then, you can issue a GET request to http://localhost:3002/customers, and the API call will be passed through the server to http://some/other/api/customers and return a CORS-enabled response.

About

A simple web api proxy written in Express.

Resources

Readme
MIT license
Activity

Stars

1 star

Watchers

1 watching

Forks

0 forks
Report repository

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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Repository files navigation
Simple API Proxy
This is a simple web API proxy, which can be used to forward API calls from one URI to another,
through the node Express web server. I've used this in personal projects to avoid issues with
CORS, especially in
proof-of-concept designs or quickstarters.
If you see this error in Chrome, this project may help you:
alt tag
Prerequisites
Ensure Node is installed. See nodejs.org.
Download
Download this project. The easiest way is to click the "Download Zip" button above:
alt tag
Once downloaded, unzip the project.
Installation
Open a command prompt and navigate to the folder where the project was unzipped.
Then, run npm install
Running the proxy server
Run npm start -- --proxy=http://path/to/api
Note the -- option is present to correctly pass parameters to the node script.
For more complex options, the following parameters are available:
--path=/local/path/to/forward/to/api/* - Defaults to /* to forward all calls.
--proxy=http://path/to/api - Required, the path to the web API that you're proxying.
--port=3002 - Defaults to 3002, the port assigned to the proxy.
For example:
Running npm start -- --proxy=http://mywebsite.com/api --port=60001 --path=/api/* would:
  1. Start the proxy server at port 60001.
  2. Forward all calls starting with http://localhost:60001/api to http://mywebsite.com/api.
Making API calls to proxy
Once the proxy is running, you can direct all calls to it rather than another server.
For example, if you were originally issuing a GET request to http://some/other/api/customers
to get a list of customers, you would first run a server like this:
npm start -- --proxy=http://some/other/web/api
Then, you can issue a GET request to http://localhost:3002/customers, and the API call
will be passed through the server to http://some/other/api/customers and return a
CORS-enabled response.
About
A simple web api proxy written in Express.
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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README.md
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package.json
Repository files navigation
Simple API Proxy
This is a simple web API proxy, which can be used to forward API calls from one URI to another,
through the node Express web server. I've used this in personal projects to avoid issues with
CORS, especially in
proof-of-concept designs or quickstarters.
If you see this error in Chrome, this project may help you:
alt tag
Prerequisites
Ensure Node is installed. See nodejs.org.
Download
Download this project. The easiest way is to click the "Download Zip" button above:
alt tag
Once downloaded, unzip the project.
Installation
Open a command prompt and navigate to the folder where the project was unzipped.
Then, run npm install
Running the proxy server
Run npm start -- --proxy=http://path/to/api
Note the -- option is present to correctly pass parameters to the node script.
For more complex options, the following parameters are available:
--path=/local/path/to/forward/to/api/* - Defaults to /* to forward all calls.
--proxy=http://path/to/api - Required, the path to the web API that you're proxying.
--port=3002 - Defaults to 3002, the port assigned to the proxy.
For example:
Running npm start -- --proxy=http://mywebsite.com/api --port=60001 --path=/api/* would:
  1. Start the proxy server at port 60001.
  2. Forward all calls starting with http://localhost:60001/api to http://mywebsite.com/api.
Making API calls to proxy
Once the proxy is running, you can direct all calls to it rather than another server.
For example, if you were originally issuing a GET request to http://some/other/api/customers
to get a list of customers, you would first run a server like this:
npm start -- --proxy=http://some/other/web/api
Then, you can issue a GET request to http://localhost:3002/customers, and the API call
will be passed through the server to http://some/other/api/customers and return a
CORS-enabled response.
About
A simple web api proxy written in Express.
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
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8 Commits
Folders and files
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README.md
README.md
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package.json
Repository files navigation
Simple API Proxy
This is a simple web API proxy, which can be used to forward API calls from one URI to another,
through the node Express web server. I've used this in personal projects to avoid issues with
CORS, especially in
proof-of-concept designs or quickstarters.
If you see this error in Chrome, this project may help you:
alt tag
Prerequisites
Ensure Node is installed. See nodejs.org.
Download
Download this project. The easiest way is to click the "Download Zip" button above:
alt tag
Once downloaded, unzip the project.
Installation
Open a command prompt and navigate to the folder where the project was unzipped.
Then, run npm install
Running the proxy server
Run npm start -- --proxy=http://path/to/api
Note the -- option is present to correctly pass parameters to the node script.
For more complex options, the following parameters are available:
--path=/local/path/to/forward/to/api/* - Defaults to /* to forward all calls.
--proxy=http://path/to/api - Required, the path to the web API that you're proxying.
--port=3002 - Defaults to 3002, the port assigned to the proxy.
For example:
Running npm start -- --proxy=http://mywebsite.com/api --port=60001 --path=/api/* would:
  1. Start the proxy server at port 60001.
  2. Forward all calls starting with http://localhost:60001/api to http://mywebsite.com/api.
Making API calls to proxy
Once the proxy is running, you can direct all calls to it rather than another server.
For example, if you were originally issuing a GET request to http://some/other/api/customers
to get a list of customers, you would first run a server like this:
npm start -- --proxy=http://some/other/web/api
Then, you can issue a GET request to http://localhost:3002/customers, and the API call
will be passed through the server to http://some/other/api/customers and return a
CORS-enabled response.
About
A simple web api proxy written in Express.
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
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8 Commits
Folders and files
NameName
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api
docs/img
docs/img
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.gitignore
LICENSE
LICENSE
README.md
README.md
package.json
package.json
Repository files navigation
Simple API Proxy
This is a simple web API proxy, which can be used to forward API calls from one URI to another,
through the node Express web server. I've used this in personal projects to avoid issues with
CORS, especially in
proof-of-concept designs or quickstarters.
If you see this error in Chrome, this project may help you:
alt tag
Prerequisites
Ensure Node is installed. See nodejs.org.
Download
Download this project. The easiest way is to click the "Download Zip" button above:
alt tag
Once downloaded, unzip the project.
Installation
Open a command prompt and navigate to the folder where the project was unzipped.
Then, run npm install
Running the proxy server
Run npm start -- --proxy=http://path/to/api
Note the -- option is present to correctly pass parameters to the node script.
For more complex options, the following parameters are available:
--path=/local/path/to/forward/to/api/* - Defaults to /* to forward all calls.
--proxy=http://path/to/api - Required, the path to the web API that you're proxying.
--port=3002 - Defaults to 3002, the port assigned to the proxy.
For example:
Running npm start -- --proxy=http://mywebsite.com/api --port=60001 --path=/api/* would:
  1. Start the proxy server at port 60001.
  2. Forward all calls starting with http://localhost:60001/api to http://mywebsite.com/api.
Making API calls to proxy
Once the proxy is running, you can direct all calls to it rather than another server.
For example, if you were originally issuing a GET request to http://some/other/api/customers
to get a list of customers, you would first run a server like this:
npm start -- --proxy=http://some/other/web/api
Then, you can issue a GET request to http://localhost:3002/customers, and the API call
will be passed through the server to http://some/other/api/customers and return a
CORS-enabled response.
About
A simple web api proxy written in Express.
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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8 Commits
Folders and files
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LICENSE
LICENSE
README.md
README.md
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package.json
Repository files navigation
Simple API Proxy
This is a simple web API proxy, which can be used to forward API calls from one URI to another,
through the node Express web server. I've used this in personal projects to avoid issues with
CORS, especially in
proof-of-concept designs or quickstarters.
If you see this error in Chrome, this project may help you:
alt tag
Prerequisites
Ensure Node is installed. See nodejs.org.
Download
Download this project. The easiest way is to click the "Download Zip" button above:
alt tag
Once downloaded, unzip the project.
Installation
Open a command prompt and navigate to the folder where the project was unzipped.
Then, run npm install
Running the proxy server
Run npm start -- --proxy=http://path/to/api
Note the -- option is present to correctly pass parameters to the node script.
For more complex options, the following parameters are available:
--path=/local/path/to/forward/to/api/* - Defaults to /* to forward all calls.
--proxy=http://path/to/api - Required, the path to the web API that you're proxying.
--port=3002 - Defaults to 3002, the port assigned to the proxy.
For example:
Running npm start -- --proxy=http://mywebsite.com/api --port=60001 --path=/api/* would:
  1. Start the proxy server at port 60001.
  2. Forward all calls starting with http://localhost:60001/api to http://mywebsite.com/api.
Making API calls to proxy
Once the proxy is running, you can direct all calls to it rather than another server.
For example, if you were originally issuing a GET request to http://some/other/api/customers
to get a list of customers, you would first run a server like this:
npm start -- --proxy=http://some/other/web/api
Then, you can issue a GET request to http://localhost:3002/customers, and the API call
will be passed through the server to http://some/other/api/customers and return a
CORS-enabled response.
About
A simple web api proxy written in Express.
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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8 Commits
Folders and files
NameName
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docs/img
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.gitignore
LICENSE
LICENSE
README.md
README.md
package.json
package.json
Repository files navigation
Simple API Proxy
This is a simple web API proxy, which can be used to forward API calls from one URI to another,
through the node Express web server. I've used this in personal projects to avoid issues with
CORS, especially in
proof-of-concept designs or quickstarters.
If you see this error in Chrome, this project may help you:
alt tag
Prerequisites
Ensure Node is installed. See nodejs.org.
Download
Download this project. The easiest way is to click the "Download Zip" button above:
alt tag
Once downloaded, unzip the project.
Installation
Open a command prompt and navigate to the folder where the project was unzipped.
Then, run npm install
Running the proxy server
Run npm start -- --proxy=http://path/to/api
Note the -- option is present to correctly pass parameters to the node script.
For more complex options, the following parameters are available:
--path=/local/path/to/forward/to/api/* - Defaults to /* to forward all calls.
--proxy=http://path/to/api - Required, the path to the web API that you're proxying.
--port=3002 - Defaults to 3002, the port assigned to the proxy.
For example:
Running npm start -- --proxy=http://mywebsite.com/api --port=60001 --path=/api/* would:
  1. Start the proxy server at port 60001.
  2. Forward all calls starting with http://localhost:60001/api to http://mywebsite.com/api.
Making API calls to proxy
Once the proxy is running, you can direct all calls to it rather than another server.
For example, if you were originally issuing a GET request to http://some/other/api/customers
to get a list of customers, you would first run a server like this:
npm start -- --proxy=http://some/other/web/api
Then, you can issue a GET request to http://localhost:3002/customers, and the API call
will be passed through the server to http://some/other/api/customers and return a
CORS-enabled response.
About
A simple web api proxy written in Express.
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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Simple API Proxy
This is a simple web API proxy, which can be used to forward API calls from one URI to another,
through the node Express web server. I've used this in personal projects to avoid issues with
CORS, especially in
proof-of-concept designs or quickstarters.
If you see this error in Chrome, this project may help you:
alt tag
Prerequisites
Ensure Node is installed. See nodejs.org.
Download
Download this project. The easiest way is to click the "Download Zip" button above:
alt tag
Once downloaded, unzip the project.
Installation
Open a command prompt and navigate to the folder where the project was unzipped.
Then, run npm install
Running the proxy server
Run npm start -- --proxy=http://path/to/api
Note the -- option is present to correctly pass parameters to the node script.
For more complex options, the following parameters are available:
--path=/local/path/to/forward/to/api/* - Defaults to /* to forward all calls.
--proxy=http://path/to/api - Required, the path to the web API that you're proxying.
--port=3002 - Defaults to 3002, the port assigned to the proxy.
For example:
Running npm start -- --proxy=http://mywebsite.com/api --port=60001 --path=/api/* would:
  1. Start the proxy server at port 60001.
  2. Forward all calls starting with http://localhost:60001/api to http://mywebsite.com/api.
Making API calls to proxy
Once the proxy is running, you can direct all calls to it rather than another server.
For example, if you were originally issuing a GET request to http://some/other/api/customers
to get a list of customers, you would first run a server like this:
npm start -- --proxy=http://some/other/web/api
Then, you can issue a GET request to http://localhost:3002/customers, and the API call
will be passed through the server to http://some/other/api/customers and return a
CORS-enabled response.
About
A simple web api proxy written in Express.
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