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Mystique

Build StatusNPM versionBuild StatusDependency StatusCoverage Status

A simple Express app for proxying and manipulating images, specifically headshots.

The code is just over 100 lines, making it easy to tailor to your needs.

Getting Started

First, install the dependencies for the gm package.

npm install
npm start
curl -I http://localhost:5000/http%3A%2F%2F1.gravatar.com%2Favatar%2F60f641dfbb4215f1f6d6c059eebf1848/240/80.jpg

The URL structure is /:url/:width/:height.:extension?. The :url parameter must be escaped/encoded. If the remote image's width or height is greater than the given :width or :height, it will be resized, maintaining aspect ratio, and cropped. If smaller, it will be padded with white pixels. If an optional :extension parameter is provided, the image will be transcoded to the corresponding file format. The equivalent ImageMagick command for the example URL above is:

convert input.jpg -thumbnail 240x80^> -gravity center -extent 240x80 output.jpg

The Cache-Control header sets a max-age of one year.

Features

Image proxy:

  • Supports HTTP and HTTPS
  • Follows 301 and 302 redirects
  • Sets a maximum timeout for the remote server
  • Handles complex MIME types like image/jpeg; charset=utf-8
  • Optional whitelisting using regular expressions

Image manipulation:

  • Accepts a custom width and height, up to 1000x1000
  • Resizes, centers and crops the image
  • Optionally transcodes to another file format

HTTP server:

  • No query string parameters (preferred by CloudFront)
  • Adds a Cache-Control header

If you need more features, see node-imageable and node-imageable-server.

Environment variables

  • DELAY: The timeout delay in milliseconds, after which the proxy will respond with a HTTP 504 Gateway Timeout server error. Default: 5000
  • WHITELIST: A comma-separated list of domains to whitelist, e.g. .gov,facebook.com, which will be transformed into the regular expressions /\.gov$/ and /facebook\.com$/.
  • PORT: If running the server, changes the port on which it listens. Default: 5000

Deployment

Heroku

Deploy

git clone https://github.com/jpmckinney/image-proxy.git
heroku apps:create
heroku config:set NODE_ENV=production
git push heroku master
heroku apps:open

AWS CloudFront

Create a distribution and set the "Origin Domain Name" to the domain name of your Heroku app.

Testing

npm test

Acknowledgements

This project is inspired by node-connect-image-proxy.

Copyright (c) 2013 James McKinney, released under the MIT license

About

🗼The Podcast Image Proxy-Cache

Topics

imageimage-processingimage-proxynodeproxyreal-time

Resources

Readme
MIT license
Activity
Custom properties

Stars

2 stars

Watchers

1 watching

Forks

0 forks
Report repository

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
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;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
GitHub - feedcast/mystique: 🗼The Podcast Image Proxy-Cache · GitHub
Skip to content
BranchesTags
Repository files navigation
Mystique
Build StatusNPM versionBuild StatusDependency StatusCoverage Status
A simple Express app for proxying and manipulating images, specifically headshots.
The code is just over 100 lines, making it easy to tailor to your needs.
Getting Started
First, install the dependencies for the gm package.
npm install
npm start
curl -I http://localhost:5000/http%3A%2F%2F1.gravatar.com%2Favatar%2F60f641dfbb4215f1f6d6c059eebf1848/240/80.jpg

The URL structure is /:url/:width/:height.:extension?. The :url parameter must be escaped/encoded. If the remote image's width or height is greater than the given :width or :height, it will be resized, maintaining aspect ratio, and cropped. If smaller, it will be padded with white pixels. If an optional :extension parameter is provided, the image will be transcoded to the corresponding file format. The equivalent ImageMagick command for the example URL above is:
convert input.jpg -thumbnail 240x80^> -gravity center -extent 240x80 output.jpg

The Cache-Control header sets a max-age of one year.
Features
Image proxy:
  • Supports HTTP and HTTPS
  • Follows 301 and 302 redirects
  • Sets a maximum timeout for the remote server
  • Handles complex MIME types like image/jpeg; charset=utf-8
  • Optional whitelisting using regular expressions
Image manipulation:
  • Accepts a custom width and height, up to 1000x1000
  • Resizes, centers and crops the image
  • Optionally transcodes to another file format
HTTP server:
  • No query string parameters (preferred by CloudFront)
  • Adds a Cache-Control header
If you need more features, see node-imageable and node-imageable-server.
Environment variables
  • DELAY: The timeout delay in milliseconds, after which the proxy will respond with a HTTP 504 Gateway Timeout server error. Default: 5000
  • WHITELIST: A comma-separated list of domains to whitelist, e.g. .gov,facebook.com, which will be transformed into the regular expressions /\.gov$/ and /facebook\.com$/.
  • PORT: If running the server, changes the port on which it listens. Default: 5000
Deployment
Heroku
Deploy
git clone https://github.com/jpmckinney/image-proxy.git
heroku apps:create
heroku config:set NODE_ENV=production
git push heroku master
heroku apps:open

AWS CloudFront
Create a distribution and set the "Origin Domain Name" to the domain name of your Heroku app.
Testing
npm test

Acknowledgements
This project is inspired by node-connect-image-proxy.
Copyright (c) 2013 James McKinney, released under the MIT license
About
🗼The Podcast Image Proxy-Cache
Topics
imageimage-processingimage-proxynodeproxyreal-time
Resources
Readme
MIT license
Activity
Custom properties
Stars
2 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - feedcast/mystique: 🗼The Podcast Image Proxy-Cache · GitHub
Skip to content
BranchesTags
Repository files navigation
Mystique
Build StatusNPM versionBuild StatusDependency StatusCoverage Status
A simple Express app for proxying and manipulating images, specifically headshots.
The code is just over 100 lines, making it easy to tailor to your needs.
Getting Started
First, install the dependencies for the gm package.
npm install
npm start
curl -I http://localhost:5000/http%3A%2F%2F1.gravatar.com%2Favatar%2F60f641dfbb4215f1f6d6c059eebf1848/240/80.jpg

The URL structure is /:url/:width/:height.:extension?. The :url parameter must be escaped/encoded. If the remote image's width or height is greater than the given :width or :height, it will be resized, maintaining aspect ratio, and cropped. If smaller, it will be padded with white pixels. If an optional :extension parameter is provided, the image will be transcoded to the corresponding file format. The equivalent ImageMagick command for the example URL above is:
convert input.jpg -thumbnail 240x80^> -gravity center -extent 240x80 output.jpg

The Cache-Control header sets a max-age of one year.
Features
Image proxy:
  • Supports HTTP and HTTPS
  • Follows 301 and 302 redirects
  • Sets a maximum timeout for the remote server
  • Handles complex MIME types like image/jpeg; charset=utf-8
  • Optional whitelisting using regular expressions
Image manipulation:
  • Accepts a custom width and height, up to 1000x1000
  • Resizes, centers and crops the image
  • Optionally transcodes to another file format
HTTP server:
  • No query string parameters (preferred by CloudFront)
  • Adds a Cache-Control header
If you need more features, see node-imageable and node-imageable-server.
Environment variables
  • DELAY: The timeout delay in milliseconds, after which the proxy will respond with a HTTP 504 Gateway Timeout server error. Default: 5000
  • WHITELIST: A comma-separated list of domains to whitelist, e.g. .gov,facebook.com, which will be transformed into the regular expressions /\.gov$/ and /facebook\.com$/.
  • PORT: If running the server, changes the port on which it listens. Default: 5000
Deployment
Heroku
Deploy
git clone https://github.com/jpmckinney/image-proxy.git
heroku apps:create
heroku config:set NODE_ENV=production
git push heroku master
heroku apps:open

AWS CloudFront
Create a distribution and set the "Origin Domain Name" to the domain name of your Heroku app.
Testing
npm test

Acknowledgements
This project is inspired by node-connect-image-proxy.
Copyright (c) 2013 James McKinney, released under the MIT license
About
🗼The Podcast Image Proxy-Cache
Topics
imageimage-processingimage-proxynodeproxyreal-time
Resources
Readme
MIT license
Activity
Custom properties
Stars
2 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - feedcast/mystique: 🗼The Podcast Image Proxy-Cache · GitHub
Skip to content
BranchesTags
Repository files navigation
Mystique
Build StatusNPM versionBuild StatusDependency StatusCoverage Status
A simple Express app for proxying and manipulating images, specifically headshots.
The code is just over 100 lines, making it easy to tailor to your needs.
Getting Started
First, install the dependencies for the gm package.
npm install
npm start
curl -I http://localhost:5000/http%3A%2F%2F1.gravatar.com%2Favatar%2F60f641dfbb4215f1f6d6c059eebf1848/240/80.jpg

The URL structure is /:url/:width/:height.:extension?. The :url parameter must be escaped/encoded. If the remote image's width or height is greater than the given :width or :height, it will be resized, maintaining aspect ratio, and cropped. If smaller, it will be padded with white pixels. If an optional :extension parameter is provided, the image will be transcoded to the corresponding file format. The equivalent ImageMagick command for the example URL above is:
convert input.jpg -thumbnail 240x80^> -gravity center -extent 240x80 output.jpg

The Cache-Control header sets a max-age of one year.
Features
Image proxy:
  • Supports HTTP and HTTPS
  • Follows 301 and 302 redirects
  • Sets a maximum timeout for the remote server
  • Handles complex MIME types like image/jpeg; charset=utf-8
  • Optional whitelisting using regular expressions
Image manipulation:
  • Accepts a custom width and height, up to 1000x1000
  • Resizes, centers and crops the image
  • Optionally transcodes to another file format
HTTP server:
  • No query string parameters (preferred by CloudFront)
  • Adds a Cache-Control header
If you need more features, see node-imageable and node-imageable-server.
Environment variables
  • DELAY: The timeout delay in milliseconds, after which the proxy will respond with a HTTP 504 Gateway Timeout server error. Default: 5000
  • WHITELIST: A comma-separated list of domains to whitelist, e.g. .gov,facebook.com, which will be transformed into the regular expressions /\.gov$/ and /facebook\.com$/.
  • PORT: If running the server, changes the port on which it listens. Default: 5000
Deployment
Heroku
Deploy
git clone https://github.com/jpmckinney/image-proxy.git
heroku apps:create
heroku config:set NODE_ENV=production
git push heroku master
heroku apps:open

AWS CloudFront
Create a distribution and set the "Origin Domain Name" to the domain name of your Heroku app.
Testing
npm test

Acknowledgements
This project is inspired by node-connect-image-proxy.
Copyright (c) 2013 James McKinney, released under the MIT license
About
🗼The Podcast Image Proxy-Cache
Topics
imageimage-processingimage-proxynodeproxyreal-time
Resources
Readme
MIT license
Activity
Custom properties
Stars
2 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
GitHub - feedcast/mystique: 🗼The Podcast Image Proxy-Cache · GitHub
Skip to content
BranchesTags
Repository files navigation
Mystique
Build StatusNPM versionBuild StatusDependency StatusCoverage Status
A simple Express app for proxying and manipulating images, specifically headshots.
The code is just over 100 lines, making it easy to tailor to your needs.
Getting Started
First, install the dependencies for the gm package.
npm install
npm start
curl -I http://localhost:5000/http%3A%2F%2F1.gravatar.com%2Favatar%2F60f641dfbb4215f1f6d6c059eebf1848/240/80.jpg

The URL structure is /:url/:width/:height.:extension?. The :url parameter must be escaped/encoded. If the remote image's width or height is greater than the given :width or :height, it will be resized, maintaining aspect ratio, and cropped. If smaller, it will be padded with white pixels. If an optional :extension parameter is provided, the image will be transcoded to the corresponding file format. The equivalent ImageMagick command for the example URL above is:
convert input.jpg -thumbnail 240x80^> -gravity center -extent 240x80 output.jpg

The Cache-Control header sets a max-age of one year.
Features
Image proxy:
  • Supports HTTP and HTTPS
  • Follows 301 and 302 redirects
  • Sets a maximum timeout for the remote server
  • Handles complex MIME types like image/jpeg; charset=utf-8
  • Optional whitelisting using regular expressions
Image manipulation:
  • Accepts a custom width and height, up to 1000x1000
  • Resizes, centers and crops the image
  • Optionally transcodes to another file format
HTTP server:
  • No query string parameters (preferred by CloudFront)
  • Adds a Cache-Control header
If you need more features, see node-imageable and node-imageable-server.
Environment variables
  • DELAY: The timeout delay in milliseconds, after which the proxy will respond with a HTTP 504 Gateway Timeout server error. Default: 5000
  • WHITELIST: A comma-separated list of domains to whitelist, e.g. .gov,facebook.com, which will be transformed into the regular expressions /\.gov$/ and /facebook\.com$/.
  • PORT: If running the server, changes the port on which it listens. Default: 5000
Deployment
Heroku
Deploy
git clone https://github.com/jpmckinney/image-proxy.git
heroku apps:create
heroku config:set NODE_ENV=production
git push heroku master
heroku apps:open

AWS CloudFront
Create a distribution and set the "Origin Domain Name" to the domain name of your Heroku app.
Testing
npm test

Acknowledgements
This project is inspired by node-connect-image-proxy.
Copyright (c) 2013 James McKinney, released under the MIT license
About
🗼The Podcast Image Proxy-Cache
Topics
imageimage-processingimage-proxynodeproxyreal-time
Resources
Readme
MIT license
Activity
Custom properties
Stars
2 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - feedcast/mystique: 🗼The Podcast Image Proxy-Cache · GitHub
Skip to content
BranchesTags
Repository files navigation
Mystique
Build StatusNPM versionBuild StatusDependency StatusCoverage Status
A simple Express app for proxying and manipulating images, specifically headshots.
The code is just over 100 lines, making it easy to tailor to your needs.
Getting Started
First, install the dependencies for the gm package.
npm install
npm start
curl -I http://localhost:5000/http%3A%2F%2F1.gravatar.com%2Favatar%2F60f641dfbb4215f1f6d6c059eebf1848/240/80.jpg

The URL structure is /:url/:width/:height.:extension?. The :url parameter must be escaped/encoded. If the remote image's width or height is greater than the given :width or :height, it will be resized, maintaining aspect ratio, and cropped. If smaller, it will be padded with white pixels. If an optional :extension parameter is provided, the image will be transcoded to the corresponding file format. The equivalent ImageMagick command for the example URL above is:
convert input.jpg -thumbnail 240x80^> -gravity center -extent 240x80 output.jpg

The Cache-Control header sets a max-age of one year.
Features
Image proxy:
  • Supports HTTP and HTTPS
  • Follows 301 and 302 redirects
  • Sets a maximum timeout for the remote server
  • Handles complex MIME types like image/jpeg; charset=utf-8
  • Optional whitelisting using regular expressions
Image manipulation:
  • Accepts a custom width and height, up to 1000x1000
  • Resizes, centers and crops the image
  • Optionally transcodes to another file format
HTTP server:
  • No query string parameters (preferred by CloudFront)
  • Adds a Cache-Control header
If you need more features, see node-imageable and node-imageable-server.
Environment variables
  • DELAY: The timeout delay in milliseconds, after which the proxy will respond with a HTTP 504 Gateway Timeout server error. Default: 5000
  • WHITELIST: A comma-separated list of domains to whitelist, e.g. .gov,facebook.com, which will be transformed into the regular expressions /\.gov$/ and /facebook\.com$/.
  • PORT: If running the server, changes the port on which it listens. Default: 5000
Deployment
Heroku
Deploy
git clone https://github.com/jpmckinney/image-proxy.git
heroku apps:create
heroku config:set NODE_ENV=production
git push heroku master
heroku apps:open

AWS CloudFront
Create a distribution and set the "Origin Domain Name" to the domain name of your Heroku app.
Testing
npm test

Acknowledgements
This project is inspired by node-connect-image-proxy.
Copyright (c) 2013 James McKinney, released under the MIT license
About
🗼The Podcast Image Proxy-Cache
Topics
imageimage-processingimage-proxynodeproxyreal-time
Resources
Readme
MIT license
Activity
Custom properties
Stars
2 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - feedcast/mystique: 🗼The Podcast Image Proxy-Cache · GitHub
Skip to content
BranchesTags
Repository files navigation
Mystique
Build StatusNPM versionBuild StatusDependency StatusCoverage Status
A simple Express app for proxying and manipulating images, specifically headshots.
The code is just over 100 lines, making it easy to tailor to your needs.
Getting Started
First, install the dependencies for the gm package.
npm install
npm start
curl -I http://localhost:5000/http%3A%2F%2F1.gravatar.com%2Favatar%2F60f641dfbb4215f1f6d6c059eebf1848/240/80.jpg

The URL structure is /:url/:width/:height.:extension?. The :url parameter must be escaped/encoded. If the remote image's width or height is greater than the given :width or :height, it will be resized, maintaining aspect ratio, and cropped. If smaller, it will be padded with white pixels. If an optional :extension parameter is provided, the image will be transcoded to the corresponding file format. The equivalent ImageMagick command for the example URL above is:
convert input.jpg -thumbnail 240x80^> -gravity center -extent 240x80 output.jpg

The Cache-Control header sets a max-age of one year.
Features
Image proxy:
  • Supports HTTP and HTTPS
  • Follows 301 and 302 redirects
  • Sets a maximum timeout for the remote server
  • Handles complex MIME types like image/jpeg; charset=utf-8
  • Optional whitelisting using regular expressions
Image manipulation:
  • Accepts a custom width and height, up to 1000x1000
  • Resizes, centers and crops the image
  • Optionally transcodes to another file format
HTTP server:
  • No query string parameters (preferred by CloudFront)
  • Adds a Cache-Control header
If you need more features, see node-imageable and node-imageable-server.
Environment variables
  • DELAY: The timeout delay in milliseconds, after which the proxy will respond with a HTTP 504 Gateway Timeout server error. Default: 5000
  • WHITELIST: A comma-separated list of domains to whitelist, e.g. .gov,facebook.com, which will be transformed into the regular expressions /\.gov$/ and /facebook\.com$/.
  • PORT: If running the server, changes the port on which it listens. Default: 5000
Deployment
Heroku
Deploy
git clone https://github.com/jpmckinney/image-proxy.git
heroku apps:create
heroku config:set NODE_ENV=production
git push heroku master
heroku apps:open

AWS CloudFront
Create a distribution and set the "Origin Domain Name" to the domain name of your Heroku app.
Testing
npm test

Acknowledgements
This project is inspired by node-connect-image-proxy.
Copyright (c) 2013 James McKinney, released under the MIT license
About
🗼The Podcast Image Proxy-Cache
Topics
imageimage-processingimage-proxynodeproxyreal-time
Resources
Readme
MIT license
Activity
Custom properties
Stars
2 stars
Watchers
1 watching
Forks
0 forks
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
GitHub - feedcast/mystique: 🗼The Podcast Image Proxy-Cache · GitHub
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Mystique
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A simple Express app for proxying and manipulating images, specifically headshots.
The code is just over 100 lines, making it easy to tailor to your needs.
Getting Started
First, install the dependencies for the gm package.
npm install
npm start
curl -I http://localhost:5000/http%3A%2F%2F1.gravatar.com%2Favatar%2F60f641dfbb4215f1f6d6c059eebf1848/240/80.jpg

The URL structure is /:url/:width/:height.:extension?. The :url parameter must be escaped/encoded. If the remote image's width or height is greater than the given :width or :height, it will be resized, maintaining aspect ratio, and cropped. If smaller, it will be padded with white pixels. If an optional :extension parameter is provided, the image will be transcoded to the corresponding file format. The equivalent ImageMagick command for the example URL above is:
convert input.jpg -thumbnail 240x80^> -gravity center -extent 240x80 output.jpg

The Cache-Control header sets a max-age of one year.
Features
Image proxy:
  • Supports HTTP and HTTPS
  • Follows 301 and 302 redirects
  • Sets a maximum timeout for the remote server
  • Handles complex MIME types like image/jpeg; charset=utf-8
  • Optional whitelisting using regular expressions
Image manipulation:
  • Accepts a custom width and height, up to 1000x1000
  • Resizes, centers and crops the image
  • Optionally transcodes to another file format
HTTP server:
  • No query string parameters (preferred by CloudFront)
  • Adds a Cache-Control header
If you need more features, see node-imageable and node-imageable-server.
Environment variables
  • DELAY: The timeout delay in milliseconds, after which the proxy will respond with a HTTP 504 Gateway Timeout server error. Default: 5000
  • WHITELIST: A comma-separated list of domains to whitelist, e.g. .gov,facebook.com, which will be transformed into the regular expressions /\.gov$/ and /facebook\.com$/.
  • PORT: If running the server, changes the port on which it listens. Default: 5000
Deployment
Heroku
Deploy
git clone https://github.com/jpmckinney/image-proxy.git
heroku apps:create
heroku config:set NODE_ENV=production
git push heroku master
heroku apps:open

AWS CloudFront
Create a distribution and set the "Origin Domain Name" to the domain name of your Heroku app.
Testing
npm test

Acknowledgements
This project is inspired by node-connect-image-proxy.
Copyright (c) 2013 James McKinney, released under the MIT license
About
🗼The Podcast Image Proxy-Cache
Topics
imageimage-processingimage-proxynodeproxyreal-time
Resources
Readme
MIT license
Activity
Custom properties
Stars
2 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages