fix: fixed trailing slash issue

index.js

@@ -37,7 +37,6 @@ const methodOverride = require('koa-methodoverride');
 const ms = require('ms');
 const ratelimit = require('@ladjs/koa-simple-ratelimit');
 const redisStore = require('koa-redis');
-const removeTrailingSlashes = require('koa-no-trailing-slash');
 const requestId = require('express-request-id');
 const requestReceived = require('request-received');
 const responseTime = require('response-time');
@@ -47,6 +46,19 @@ const sharedConfig = require('@ladjs/shared-config');
 const views = require('@ladjs/koa-views');
 const { boolean } = require('boolean');
 
+// https://gist.github.com/titanism/241fc0c5f1c1a0b7cae3d97580e435fb
+function removeTrailingSlashes(ctx, next) {
+  const { path, search } = ctx.request;
+  if (path !== '/' && !path.startsWith('//') && path.slice(-1) === '/') {
+    const redirectUrl = path.slice(0, -1) + search;
+    ctx.response.status = 301;
+    ctx.redirect(redirectUrl);
+    return;
+  }
+
+  return next();
+}
+
 const defaultSrc = isSANB(process.env.WEB_HOST)
   ? [
       "'self'",
@@ -241,7 +253,7 @@ class Web {
     if (this.config.auth) app.use(auth(this.config.auth));
 
     // remove trailing slashes
-    app.use(removeTrailingSlashes());
+    app.use(removeTrailingSlashes);
 
     // security
     // (needs to come before i18n so HSTS header gets added)

package.json

@@ -45,7 +45,6 @@
     "koa-json": "^2.0.2",
     "koa-meta": "^4.0.1",
     "koa-methodoverride": "^2.0.0",
-    "koa-no-trailing-slash": "^2.1.0",
     "koa-redirect-loop": "^3.0.2",
     "koa-redis": "^4.0.1",
     "lodash": "^4.17.21",