diff --git a/backend/app.js b/backend/app.js
index c23aefd..43ab6bf 100644
--- a/backend/app.js
+++ b/backend/app.js
@@ -162,6 +162,7 @@ app.use(bodyParser.json());
 
 // use passport
 app.use(auth_api.passport.initialize());
+app.use(auth_api.passport.session());
 
 // actual functions
 
diff --git a/backend/downloader.js b/backend/downloader.js
index 0f3fb56..d0effb6 100644
--- a/backend/downloader.js
+++ b/backend/downloader.js
@@ -248,7 +248,7 @@ async function collectInfo(download_uid) {
         info = await exports.getVideoInfoByURL(url, args, download_uid);
     }
 
-    download['category'] = category;
+    const stripped_category = {name: category['name'], uid: category['uid']};
 
     // setup info required to calculate download progress
 
@@ -271,6 +271,7 @@ async function collectInfo(download_uid) {
                                                                     files_to_check_for_progress: files_to_check_for_progress,
                                                                     expected_file_size: expected_file_size,
                                                                     title: playlist_title ? playlist_title : info['title'],
+                                                                    category: stripped_category,
                                                                     prefetched_info: null
                                                                 });
 }
@@ -551,8 +552,8 @@ exports.generateArgs = async (url, type, options, user_uid = null, simulated = f
 exports.getVideoInfoByURL = async (url, args = [], download_uid = null) => {
     return new Promise(resolve => {
         // remove bad args
-        let new_args = [...args];
-        new_args = utils.filterArgs(new_args, ['--no-simulate']);
+        const temp_args = utils.filterArgs(args, ['--no-simulate']);
+        const new_args = [...temp_args];
 
         const archiveArgIndex = new_args.indexOf('--download-archive');
         if (archiveArgIndex !== -1) {
diff --git a/backend/package-lock.json b/backend/package-lock.json
index 00bfc6d..4491b47 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -51,43 +51,6 @@
       "resolved": "https://registry.npmjs.org/@oozcitak/util/-/util-8.3.8.tgz",
       "integrity": "sha512-T8TbSnGsxo6TDBJx/Sgv/BlVJL3tshxZP7Aq5R1mSnM5OcHY2dQaxLMu2+E8u3gN0MLOzdjurqN4ZRVuzQycOQ=="
     },
-    "@sindresorhus/is": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/@sindresorhus/is/-/is-2.1.1.tgz",
-      "integrity": "sha512-/aPsuoj/1Dw/kzhkgz+ES6TxG0zfTMGLwuK2ZG00k/iJzYHTLCE8mVU8EPqEOp/lmxPoq1C1C9RYToRKb2KEfg=="
-    },
-    "@szmarczak/http-timer": {
-      "version": "4.0.6",
-      "resolved": "https://registry.npmjs.org/@szmarczak/http-timer/-/http-timer-4.0.6.tgz",
-      "integrity": "sha512-4BAffykYOgO+5nzBWYwE3W90sBgLJoUPRWWcL8wlyiM8IB8ipJz3UMJ9KXQd1RKQXpKp8Tutn80HZtWsu2u76w==",
-      "requires": {
-        "defer-to-connect": "^2.0.0"
-      }
-    },
-    "@types/cacheable-request": {
-      "version": "6.0.3",
-      "resolved": "https://registry.npmjs.org/@types/cacheable-request/-/cacheable-request-6.0.3.tgz",
-      "integrity": "sha512-IQ3EbTzGxIigb1I3qPZc1rWJnH0BmSKv5QYTalEwweFvyBDLSAe24zP0le/hyi7ecGfZVlIVAg4BZqb8WBwKqw==",
-      "requires": {
-        "@types/http-cache-semantics": "*",
-        "@types/keyv": "^3.1.4",
-        "@types/node": "*",
-        "@types/responselike": "^1.0.0"
-      }
-    },
-    "@types/http-cache-semantics": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/@types/http-cache-semantics/-/http-cache-semantics-4.0.1.tgz",
-      "integrity": "sha512-SZs7ekbP8CN0txVG2xVRH6EgKmEm31BOxA07vkFaETzZz1xh+cbt8BcI0slpymvwhx5dlFnQG2rTlPVQn+iRPQ=="
-    },
-    "@types/keyv": {
-      "version": "3.1.4",
-      "resolved": "https://registry.npmjs.org/@types/keyv/-/keyv-3.1.4.tgz",
-      "integrity": "sha512-BQ5aZNSCpj7D6K2ksrRCTmKRLEpnPvWDiLPfoGyhZ++8YtiK9d/3DBKPJgry359X/P1PfruyYwvnvwFjuEiEIg==",
-      "requires": {
-        "@types/node": "*"
-      }
-    },
     "@types/ldapjs": {
       "version": "2.2.2",
       "resolved": "https://registry.npmjs.org/@types/ldapjs/-/ldapjs-2.2.2.tgz",
@@ -795,19 +758,6 @@
       "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-4.0.0.tgz",
       "integrity": "sha512-9iE1PgSik9HeIIw2JO94IidnE3eBoQrFJ3w7sFuzSX4DpmZ3v5sZpUiV5Swcf6mQEF+Y0ru8Neo+p+nyh2J+hQ=="
     },
-    "decompress-response": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/decompress-response/-/decompress-response-5.0.0.tgz",
-      "integrity": "sha512-TLZWWybuxWgoW7Lykv+gq9xvzOsUjQ9tF09Tj6NSTYGMTCHNXzrPnD6Hi+TgZq19PyTAGH4Ll/NIM/eTGglnMw==",
-      "requires": {
-        "mimic-response": "^2.0.0"
-      }
-    },
-    "defer-to-connect": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/defer-to-connect/-/defer-to-connect-2.0.1.tgz",
-      "integrity": "sha512-4tvttepXG1VaYGrRibk5EwJd1t4udunSOVMdLSAL6mId1ix438oPwPZMALY41FCijukO1L0twNcGsdzS7dHgDg=="
-    },
     "define-properties": {
       "version": "1.1.4",
       "resolved": "https://registry.npmjs.org/define-properties/-/define-properties-1.1.4.tgz",
@@ -911,99 +861,6 @@
         "once": "^1.4.0"
       }
     },
-    "es-abstract": {
-      "version": "1.21.2",
-      "resolved": "https://registry.npmjs.org/es-abstract/-/es-abstract-1.21.2.tgz",
-      "integrity": "sha512-y/B5POM2iBnIxCiernH1G7rC9qQoM77lLIMQLuob0zhp8C56Po81+2Nj0WFKnd0pNReDTnkYryc+zhOzpEIROg==",
-      "requires": {
-        "array-buffer-byte-length": "^1.0.0",
-        "available-typed-arrays": "^1.0.5",
-        "call-bind": "^1.0.2",
-        "es-set-tostringtag": "^2.0.1",
-        "es-to-primitive": "^1.2.1",
-        "function.prototype.name": "^1.1.5",
-        "get-intrinsic": "^1.2.0",
-        "get-symbol-description": "^1.0.0",
-        "globalthis": "^1.0.3",
-        "gopd": "^1.0.1",
-        "has": "^1.0.3",
-        "has-property-descriptors": "^1.0.0",
-        "has-proto": "^1.0.1",
-        "has-symbols": "^1.0.3",
-        "internal-slot": "^1.0.5",
-        "is-array-buffer": "^3.0.2",
-        "is-callable": "^1.2.7",
-        "is-negative-zero": "^2.0.2",
-        "is-regex": "^1.1.4",
-        "is-shared-array-buffer": "^1.0.2",
-        "is-string": "^1.0.7",
-        "is-typed-array": "^1.1.10",
-        "is-weakref": "^1.0.2",
-        "object-inspect": "^1.12.3",
-        "object-keys": "^1.1.1",
-        "object.assign": "^4.1.4",
-        "regexp.prototype.flags": "^1.4.3",
-        "safe-regex-test": "^1.0.0",
-        "string.prototype.trim": "^1.2.7",
-        "string.prototype.trimend": "^1.0.6",
-        "string.prototype.trimstart": "^1.0.6",
-        "typed-array-length": "^1.0.4",
-        "unbox-primitive": "^1.0.2",
-        "which-typed-array": "^1.1.9"
-      },
-      "dependencies": {
-        "get-intrinsic": {
-          "version": "1.2.0",
-          "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.2.0.tgz",
-          "integrity": "sha512-L049y6nFOuom5wGyRc3/gdTLO94dySVKRACj1RmJZBQXlbTMhtNIgkWkUHq+jYmZvKf14EW1EoJnnjbmoHij0Q==",
-          "requires": {
-            "function-bind": "^1.1.1",
-            "has": "^1.0.3",
-            "has-symbols": "^1.0.3"
-          }
-        }
-      }
-    },
-    "es-set-tostringtag": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/es-set-tostringtag/-/es-set-tostringtag-2.0.1.tgz",
-      "integrity": "sha512-g3OMbtlwY3QewlqAiMLI47KywjWZoEytKr8pf6iTC8uJq5bIAH52Z9pnQ8pVL6whrCto53JZDuUIsifGeLorTg==",
-      "requires": {
-        "get-intrinsic": "^1.1.3",
-        "has": "^1.0.3",
-        "has-tostringtag": "^1.0.0"
-      },
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-        "get-intrinsic": {
-          "version": "1.2.0",
-          "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.2.0.tgz",
-          "integrity": "sha512-L049y6nFOuom5wGyRc3/gdTLO94dySVKRACj1RmJZBQXlbTMhtNIgkWkUHq+jYmZvKf14EW1EoJnnjbmoHij0Q==",
-          "requires": {
-            "function-bind": "^1.1.1",
-            "has": "^1.0.3",
-            "has-symbols": "^1.0.3"
-          }
-        }
-      }
-    },
-    "es-shim-unscopables": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/es-shim-unscopables/-/es-shim-unscopables-1.0.0.tgz",
-      "integrity": "sha512-Jm6GPcCdC30eMLbZ2x8z2WuRwAws3zTBBKuusffYVUrNj/GVSUAZ+xKMaUpfNDR5IbyNA5LJbaecoUVbmUcB1w==",
-      "requires": {
-        "has": "^1.0.3"
-      }
-    },
-    "es-to-primitive": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/es-to-primitive/-/es-to-primitive-1.2.1.tgz",
-      "integrity": "sha512-QCOllgZJtaUo9miYBcLChTUaHNjJF3PYs1VidD7AwiEj1kYxKeQTctLAezAOH5ZKRH0g2IgPn6KwB4IT8iRpvA==",
-      "requires": {
-        "is-callable": "^1.1.4",
-        "is-date-object": "^1.0.1",
-        "is-symbol": "^1.0.2"
-      }
-    },
     "escalade": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.1.1.tgz",
@@ -1029,11 +886,6 @@
       "resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",
       "integrity": "sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc="
     },
-    "eventemitter3": {
-      "version": "3.1.2",
-      "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-3.1.2.tgz",
-      "integrity": "sha512-tvtQIeLVHjDkJYnzf2dgVMxfuSGJeM/7UCG17TT4EumTfNtF+0nebF/4zWOIkCreAbtNqhGEboB6BWrwqNaw4Q=="
-    },
     "execa": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/execa/-/execa-3.2.0.tgz",
@@ -1122,6 +974,33 @@
         }
       }
     },
+    "express-session": {
+      "version": "1.17.3",
+      "resolved": "https://registry.npmjs.org/express-session/-/express-session-1.17.3.tgz",
+      "integrity": "sha512-4+otWXlShYlG1Ma+2Jnn+xgKUZTMJ5QD3YvfilX3AcocOAbIkVylSWEklzALe/+Pu4qV6TYBj5GwOBFfdKqLBw==",
+      "requires": {
+        "cookie": "0.4.2",
+        "cookie-signature": "1.0.6",
+        "debug": "2.6.9",
+        "depd": "~2.0.0",
+        "on-headers": "~1.0.2",
+        "parseurl": "~1.3.3",
+        "safe-buffer": "5.2.1",
+        "uid-safe": "~2.1.5"
+      },
+      "dependencies": {
+        "depd": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
+          "integrity": "sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw=="
+        },
+        "safe-buffer": {
+          "version": "5.2.1",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+          "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ=="
+        }
+      }
+    },
     "extend": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.2.tgz",
@@ -1147,19 +1026,6 @@
       "resolved": "https://registry.npmjs.org/fecha/-/fecha-4.2.3.tgz",
       "integrity": "sha512-OP2IUU6HeYKJi3i0z4A19kHMQoLVs4Hc+DPqqxI2h/DPZHTm/vjsfC6P0b4jCMy14XizLBqvndQ+UilD7707Jw=="
     },
-    "feed": {
-      "version": "4.2.2",
-      "resolved": "https://registry.npmjs.org/feed/-/feed-4.2.2.tgz",
-      "integrity": "sha512-u5/sxGfiMfZNtJ3OvQpXcvotFpYkL0n9u9mM2vkui2nGo8b4wvDkJ8gAkYqbA8QpGyFCv3RK0Z+Iv+9veCS9bQ==",
-      "requires": {
-        "xml-js": "^1.6.11"
-      }
-    },
-    "file-type": {
-      "version": "3.9.0",
-      "resolved": "https://registry.npmjs.org/file-type/-/file-type-3.9.0.tgz",
-      "integrity": "sha512-RLoqTXE8/vPmMuTI88DAzhMYC99I8BWv7zYP4A1puo5HIjEJ5EX48ighy4ZyKMG9EDXxBgW6e++cn7d1xuFghA=="
-    },
     "fill-range": {
       "version": "7.0.1",
       "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.0.1.tgz",
@@ -1301,22 +1167,6 @@
       "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
       "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A=="
     },
-    "function.prototype.name": {
-      "version": "1.1.5",
-      "resolved": "https://registry.npmjs.org/function.prototype.name/-/function.prototype.name-1.1.5.tgz",
-      "integrity": "sha512-uN7m/BzVKQnCUF/iW8jYea67v++2u7m5UgENbHRtdDVclOUP+FMPlCNdmk0h/ysGyo2tavMJEDqJAkJdRa1vMA==",
-      "requires": {
-        "call-bind": "^1.0.2",
-        "define-properties": "^1.1.3",
-        "es-abstract": "^1.19.0",
-        "functions-have-names": "^1.2.2"
-      }
-    },
-    "functions-have-names": {
-      "version": "1.2.3",
-      "resolved": "https://registry.npmjs.org/functions-have-names/-/functions-have-names-1.2.3.tgz",
-      "integrity": "sha512-xckBUXyTIqT97tq2x2AMb+g163b5JFysYk0x4qxNFwbfQkmNZoiRHb6sPzI9/QV33WeuvVYBUIiD4NzNIyqaRQ=="
-    },
     "get-caller-file": {
       "version": "2.0.5",
       "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-2.0.5.tgz",
@@ -1340,15 +1190,6 @@
         "pump": "^3.0.0"
       }
     },
-    "get-symbol-description": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/get-symbol-description/-/get-symbol-description-1.0.0.tgz",
-      "integrity": "sha512-2EmdH1YvIQiZpltCNgkuiUnyukzxM/R6NDJX31Ke3BG1Nq5b0S2PhX59UKi9vZpPDQVdqn+1IcaAwnzTT5vCjw==",
-      "requires": {
-        "call-bind": "^1.0.2",
-        "get-intrinsic": "^1.1.1"
-      }
-    },
     "getpass": {
       "version": "0.1.7",
       "resolved": "https://registry.npmjs.org/getpass/-/getpass-0.1.7.tgz",
@@ -1468,11 +1309,6 @@
         "function-bind": "^1.1.1"
       }
     },
-    "has-bigints": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/has-bigints/-/has-bigints-1.0.2.tgz",
-      "integrity": "sha512-tSvCKtBr9lkF0Ex0aQiP9N+OpV4zi2r/Nee5VkRDbaqv35RLYMzbwQfFSZZH0kR+Rd6302UJZ2p/bJCEoR3VoQ=="
-    },
     "has-property-descriptors": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/has-property-descriptors/-/has-property-descriptors-1.0.0.tgz",
@@ -1579,28 +1415,6 @@
       "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
       "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
     },
-    "internal-slot": {
-      "version": "1.0.5",
-      "resolved": "https://registry.npmjs.org/internal-slot/-/internal-slot-1.0.5.tgz",
-      "integrity": "sha512-Y+R5hJrzs52QCG2laLn4udYVnxsfny9CpOhNhUvk/SSSVyF6T27FzRbF0sroPidSu3X8oEAkOn2K804mjpt6UQ==",
-      "requires": {
-        "get-intrinsic": "^1.2.0",
-        "has": "^1.0.3",
-        "side-channel": "^1.0.4"
-      },
-      "dependencies": {
-        "get-intrinsic": {
-          "version": "1.2.0",
-          "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.2.0.tgz",
-          "integrity": "sha512-L049y6nFOuom5wGyRc3/gdTLO94dySVKRACj1RmJZBQXlbTMhtNIgkWkUHq+jYmZvKf14EW1EoJnnjbmoHij0Q==",
-          "requires": {
-            "function-bind": "^1.1.1",
-            "has": "^1.0.3",
-            "has-symbols": "^1.0.3"
-          }
-        }
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-    },
     "ipaddr.js": {
       "version": "1.9.1",
       "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.1.tgz",
@@ -1663,19 +1477,6 @@
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       "integrity": "sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w=="
     },
-    "is-callable": {
-      "version": "1.2.7",
-      "resolved": "https://registry.npmjs.org/is-callable/-/is-callable-1.2.7.tgz",
-      "integrity": "sha512-1BC0BVFhS/p0qtw6enp8e+8OD0UrK0oFLztSjNzhcKA3WDuJxxAPXzPuPtKkjEY9UUoEWlX/8fgKeu2S8i9JTA=="
-    },
-    "is-date-object": {
-      "version": "1.0.5",
-      "resolved": "https://registry.npmjs.org/is-date-object/-/is-date-object-1.0.5.tgz",
-      "integrity": "sha512-9YQaSxsAiSwcvS33MBk3wTCVnWK+HhF8VZR2jRxehM16QcVOdHqPn4VPHmRK4lSr38n9JriurInLcP90xsYNfQ==",
-      "requires": {
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     "is-extglob": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz",
@@ -2420,6 +2221,31 @@
         "xtend": "^4.0.0"
       }
     },
+    "multistream": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/multistream/-/multistream-2.1.1.tgz",
+      "integrity": "sha512-xasv76hl6nr1dEy3lPvy7Ej7K/Lx3O/FCvwge8PeVJpciPPoNCbaANcNiBug3IpdvTveZUcAV0DJzdnUDMesNQ==",
+      "requires": {
+        "inherits": "^2.0.1",
+        "readable-stream": "^2.0.5"
+      },
+      "dependencies": {
+        "readable-stream": {
+          "version": "2.3.7",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.7.tgz",
+          "integrity": "sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==",
+          "requires": {
+            "core-util-is": "~1.0.0",
+            "inherits": "~2.0.3",
+            "isarray": "~1.0.0",
+            "process-nextick-args": "~2.0.0",
+            "safe-buffer": "~5.1.1",
+            "string_decoder": "~1.1.1",
+            "util-deprecate": "~1.0.1"
+          }
+        }
+      }
+    },
     "mz": {
       "version": "2.7.0",
       "resolved": "https://registry.npmjs.org/mz/-/mz-2.7.0.tgz",
@@ -2466,79 +2292,11 @@
         "sorted-array-functions": "^1.3.0"
       }
     },
-    "node-telegram-bot-api": {
-      "version": "0.61.0",
-      "resolved": "https://registry.npmjs.org/node-telegram-bot-api/-/node-telegram-bot-api-0.61.0.tgz",
-      "integrity": "sha512-BZXd8Bh2C5+uBEQuuI3FD7TFJF3alV+6oFQt8CNLx3ldX/hsd+NYyllTX+Y+5X0tG+xtcRQQjbfLgz/4sRvmBQ==",
-      "requires": {
-        "array.prototype.findindex": "^2.0.2",
-        "bl": "^1.2.3",
-        "debug": "^3.2.7",
-        "eventemitter3": "^3.0.0",
-        "file-type": "^3.9.0",
-        "mime": "^1.6.0",
-        "pump": "^2.0.0",
-        "request": "^2.83.0",
-        "request-promise": "^4.2.2"
-      },
-      "dependencies": {
-        "bl": {
-          "version": "1.2.3",
-          "resolved": "https://registry.npmjs.org/bl/-/bl-1.2.3.tgz",
-          "integrity": "sha512-pvcNpa0UU69UT341rO6AYy4FVAIkUHuZXRIWbq+zHnsVcRzDDjIAhGuuYoi0d//cwIwtt4pkpKycWEfjdV+vww==",
-          "requires": {
-            "readable-stream": "^2.3.5",
-            "safe-buffer": "^5.1.1"
-          }
-        },
-        "debug": {
-          "version": "3.2.7",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.7.tgz",
-          "integrity": "sha512-CFjzYYAi4ThfiQvizrFQevTTXHtnCqWfe7x1AhgEscTz6ZbLbfoLRLPugTQyBth6f8ZERVUSyWHFD/7Wu4t1XQ==",
-          "requires": {
-            "ms": "^2.1.1"
-          }
-        },
-        "ms": {
-          "version": "2.1.3",
-          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
-          "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA=="
-        },
-        "pump": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/pump/-/pump-2.0.1.tgz",
-          "integrity": "sha512-ruPMNRkN3MHP1cWJc9OWr+T/xDP0jhXYCLfJcBuX54hhfIBnaQmAUMfDcG4DM5UMWByBbJY69QSphm3jtDKIkA==",
-          "requires": {
-            "end-of-stream": "^1.1.0",
-            "once": "^1.3.1"
-          }
-        },
-        "readable-stream": {
-          "version": "2.3.8",
-          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.8.tgz",
-          "integrity": "sha512-8p0AUk4XODgIewSi0l8Epjs+EVnWiK7NoDIEGU0HhE7+ZyY8D1IMY7odu5lRrFXGg71L15KG8QrPmum45RTtdA==",
-          "requires": {
-            "core-util-is": "~1.0.0",
-            "inherits": "~2.0.3",
-            "isarray": "~1.0.0",
-            "process-nextick-args": "~2.0.0",
-            "safe-buffer": "~5.1.1",
-            "string_decoder": "~1.1.1",
-            "util-deprecate": "~1.0.1"
-          }
-        }
-      }
-    },
     "normalize-path": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
       "integrity": "sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA=="
     },
-    "normalize-url": {
-      "version": "6.1.0",
-      "resolved": "https://registry.npmjs.org/normalize-url/-/normalize-url-6.1.0.tgz",
-      "integrity": "sha512-DlL+XwOy3NxAQ8xuC0okPgK46iuVNAK01YN7RueYBqqFeGsBjV9XmCAzAdgt+667bCl5kPh9EqKKDwnaPG1I7A=="
-    },
     "npm-run-path": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-4.0.1.tgz",
@@ -2623,19 +2381,6 @@
         "require-at": "^1.0.6"
       }
     },
-    "p-cancelable": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/p-cancelable/-/p-cancelable-2.1.1.tgz",
-      "integrity": "sha512-BZOr3nRQHOntUjTrH8+Lh54smKHoHyur8We1V8DSMVrl5A2malOOwuJRnKRDjSnkoeBh4at6BwEnb5I7Jl31wg=="
-    },
-    "p-event": {
-      "version": "4.2.0",
-      "resolved": "https://registry.npmjs.org/p-event/-/p-event-4.2.0.tgz",
-      "integrity": "sha512-KXatOjCRXXkSePPb1Nbi0p0m+gQAwdlbhi4wQKJPI1HsMQS9g+Sqp2o+QHziPr7eYJyOZet836KoHEVM1mwOrQ==",
-      "requires": {
-        "p-timeout": "^3.1.0"
-      }
-    },
     "p-finally": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/p-finally/-/p-finally-2.0.1.tgz",
@@ -2657,21 +2402,6 @@
         "p-limit": "^3.0.2"
       }
     },
-    "p-timeout": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/p-timeout/-/p-timeout-3.2.0.tgz",
-      "integrity": "sha512-rhIwUycgwwKcP9yTOOFK/AKsAopjjCakVqLHePO3CC6Mir1Z99xT+R63jZxAT5lFZLa2inS5h+ZS2GvR99/FBg==",
-      "requires": {
-        "p-finally": "^1.0.0"
-      },
-      "dependencies": {
-        "p-finally": {
-          "version": "1.0.0",
-          "resolved": "https://registry.npmjs.org/p-finally/-/p-finally-1.0.0.tgz",
-          "integrity": "sha512-LICb2p9CB7FS+0eR1oqWnHhp0FljGLZCWBE9aix0Uye9W8LTQPwMTYVGWQWIw9RdQiDg4+epXQODwIYJtSJaow=="
-        }
-      }
-    },
     "parseurl": {
       "version": "1.3.3",
       "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
@@ -2774,7 +2504,7 @@
     "pause": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/pause/-/pause-0.0.1.tgz",
-      "integrity": "sha1-HUCLP9t2kjuVQ9lvtMnf1TXZy10="
+      "integrity": "sha512-KG8UEiEVkR3wGEb4m5yZkVCzigAD+cVEJck2CzYZO37ZGJfctvVptVO192MwrtPhzONn6go8ylnOdMhKqi4nfg=="
     },
     "performance-now": {
       "version": "2.1.0",
@@ -2847,6 +2577,11 @@
       "resolved": "https://registry.npmjs.org/qs/-/qs-6.9.7.tgz",
       "integrity": "sha512-IhMFgUmuNpyRfxA90umL7ByLlgRXu6tIfKPpF5TmcfRLlLCckfP/g3IQmju6jjpu+Hh8rA+2p6A27ZSPOOHdKw=="
     },
+    "random-bytes": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/random-bytes/-/random-bytes-1.0.0.tgz",
+      "integrity": "sha512-iv7LhNVO047HzYR3InF6pUcUsPQiHTM1Qal51DcGSuZFBil1aBBWG5eHPNek7bvILMaYJ/8RU1e8w1AMdHmLQQ=="
+    },
     "randombytes": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/randombytes/-/randombytes-2.1.0.tgz",
@@ -2904,16 +2639,6 @@
         "minimatch": "^3.0.4"
       }
     },
-    "regexp.prototype.flags": {
-      "version": "1.4.3",
-      "resolved": "https://registry.npmjs.org/regexp.prototype.flags/-/regexp.prototype.flags-1.4.3.tgz",
-      "integrity": "sha512-fjggEOO3slI6Wvgjwflkc4NFRCTZAu5CnNfBd5qOMYhWdn67nJBBu34/TkD++eeFmd8C9r9jfXJ27+nSiRkSUA==",
-      "requires": {
-        "call-bind": "^1.0.2",
-        "define-properties": "^1.1.3",
-        "functions-have-names": "^1.2.2"
-      }
-    },
     "request": {
       "version": "2.88.2",
       "resolved": "https://registry.npmjs.org/request/-/request-2.88.2.tgz",
@@ -2989,14 +2714,6 @@
       "resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
       "integrity": "sha1-jGStX9MNqxyXbiNE/+f3kqam30I="
     },
-    "responselike": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/responselike/-/responselike-2.0.1.tgz",
-      "integrity": "sha512-4gl03wn3hj1HP3yzgdI7d3lCkF95F21Pz4BPGvKHinyQzALR5CapwC8yIi0Rh58DEMQ/SguC03wFj2k0M/mHhw==",
-      "requires": {
-        "lowercase-keys": "^2.0.0"
-      }
-    },
     "rimraf": {
       "version": "2.7.1",
       "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.7.1.tgz",
@@ -3066,11 +2783,6 @@
         "sparse-bitfield": "^3.0.3"
       }
     },
-    "sax": {
-      "version": "1.2.4",
-      "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.4.tgz",
-      "integrity": "sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw=="
-    },
     "semver": {
       "version": "5.7.1",
       "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
@@ -3426,11 +3138,6 @@
       "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
       "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q="
     },
-    "type-fest": {
-      "version": "0.10.0",
-      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.10.0.tgz",
-      "integrity": "sha512-EUV9jo4sffrwlg8s0zDhP0T2WD3pru5Xi0+HTE3zTUmBaZNhfkite9PdSJwdXLwPVW0jnAHT56pZHIOYckPEiw=="
-    },
     "type-is": {
       "version": "1.6.18",
       "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
@@ -3466,6 +3173,14 @@
         "which-boxed-primitive": "^1.0.2"
       }
     },
+    "uid-safe": {
+      "version": "2.1.5",
+      "resolved": "https://registry.npmjs.org/uid-safe/-/uid-safe-2.1.5.tgz",
+      "integrity": "sha512-KPHm4VL5dDXKz01UuEd88Df+KzynaohSL9fBh096KWAxSKZQDI2uBrVqtvRM4rwrIrRRKsdLNML/lnaaVSRioA==",
+      "requires": {
+        "random-bytes": "~1.0.0"
+      }
+    },
     "universalify": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/universalify/-/universalify-1.0.0.tgz",
@@ -3667,14 +3382,6 @@
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
     },
-    "xml-js": {
-      "version": "1.6.11",
-      "resolved": "https://registry.npmjs.org/xml-js/-/xml-js-1.6.11.tgz",
-      "integrity": "sha512-7rVi2KMfwfWFl+GpPg6m80IVMWXLRjO+PxTq7V2CDhoGak0wzYzFgUY2m4XJ47OGdXd8eLE8EmwfAmdjw7lC1g==",
-      "requires": {
-        "sax": "^1.2.4"
-      }
-    },
     "xmlbuilder2": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/xmlbuilder2/-/xmlbuilder2-3.0.2.tgz",
diff --git a/backend/package.json b/backend/package.json
index 5bafdf2..5467bf3 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -27,6 +27,7 @@
     "compression": "^1.7.4",
     "config": "^3.2.3",
     "express": "^4.17.3",
+    "express-session": "^1.17.3",
     "feed": "^4.2.2",
     "fluent-ffmpeg": "^2.1.2",
     "fs-extra": "^9.0.0",
diff --git a/package-lock.json b/package-lock.json
index 9dd70d5..a7f1d4d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "youtube-dl-material",
-  "version": "4.3.0",
+  "version": "4.3.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/src/app/components/custom-playlists/custom-playlists.component.html b/src/app/components/custom-playlists/custom-playlists.component.html
index 90d2586..4a80cd2 100644
--- a/src/app/components/custom-playlists/custom-playlists.component.html
+++ b/src/app/components/custom-playlists/custom-playlists.component.html
@@ -2,7 +2,7 @@
     <div class="container">
         <div class="row justify-content-center">
             <div *ngFor="let playlist of playlists; let i = index" class="mb-2 mt-2" [ngClass]="[ postsService.card_size === 'small' ? 'col-2 small-col' : '', postsService.card_size === 'medium' ? 'col-6 col-lg-4 medium-col' : '', postsService.card_size === 'large' ? 'col-12 large-col' : '' ]">
-                <app-unified-file-card [index]="i" [card_size]="postsService.card_size" [locale]="postsService.locale" (goToFile)="goToPlaylist($event)" [file_obj]="playlist" [is_playlist]="true" (editPlaylist)="editPlaylistDialog($event)" (deleteFile)="deletePlaylist($event)" [loading]="false"></app-unified-file-card>
+                <app-unified-file-card [index]="i" [card_size]="postsService.card_size" [locale]="postsService.locale" (goToFile)="goToPlaylist($event)" [file_obj]="playlist" [is_playlist]="true" (editPlaylist)="editPlaylistDialog($event)" (deleteFile)="deletePlaylist($event)" [baseStreamPath]="postsService.path" [jwtString]="postsService.isLoggedIn ? this.postsService.token : ''" [loading]="false"></app-unified-file-card>
             </div>
         </div>
     </div>
diff --git a/src/app/dialogs/edit-category-dialog/edit-category-dialog.component.html b/src/app/dialogs/edit-category-dialog/edit-category-dialog.component.html
index 4552b73..f2e7d67 100644
--- a/src/app/dialogs/edit-category-dialog/edit-category-dialog.component.html
+++ b/src/app/dialogs/edit-category-dialog/edit-category-dialog.component.html
@@ -31,9 +31,11 @@
             <mat-form-field class="value-input">
                 <input matInput [(ngModel)]="rule['value']">
             </mat-form-field>
-            <button [disabled]="i === category['rules'].length-1" (click)="swapRules(i, i+1)" mat-icon-button><mat-icon>arrow_downward</mat-icon></button>
-            <button [disabled]="i === 0" (click)="swapRules(i, i-1)" mat-icon-button><mat-icon>arrow_upward</mat-icon></button>
-            <button (click)="removeRule(i)" mat-icon-button><mat-icon>cancel</mat-icon></button>
+            <span class="rule-buttons">
+                <button [disabled]="i === category['rules'].length-1" (click)="swapRules(i, i+1)" mat-icon-button><mat-icon>arrow_downward</mat-icon></button>
+                <button [disabled]="i === 0" (click)="swapRules(i, i-1)" mat-icon-button><mat-icon>arrow_upward</mat-icon></button>
+                <button (click)="removeRule(i)" mat-icon-button><mat-icon>cancel</mat-icon></button>
+            </span>
         </mat-list-item>
     </mat-list>
 
diff --git a/src/app/dialogs/edit-category-dialog/edit-category-dialog.component.scss b/src/app/dialogs/edit-category-dialog/edit-category-dialog.component.scss
index 53fcc70..1ee4ff2 100644
--- a/src/app/dialogs/edit-category-dialog/edit-category-dialog.component.scss
+++ b/src/app/dialogs/edit-category-dialog/edit-category-dialog.component.scss
@@ -1,5 +1,5 @@
 .operator-select {
-    width: 55px;
+    width: 90px;
 }
 
 .property-select {
@@ -13,4 +13,17 @@
 
 .value-input {
     margin-left: 10px;
+}
+
+:host ::ng-deep.mdc-list-item {
+    height: 75px !important;
+}
+
+:host ::ng-deep.mdc-list-item__content {
+    pointer-events: unset;
+}
+
+.rule-buttons {
+    position: relative;
+    top: 8px;
 }
\ No newline at end of file
diff --git a/src/app/dialogs/video-info-dialog/video-info-dialog.component.html b/src/app/dialogs/video-info-dialog/video-info-dialog.component.html
index a0b84d4..9b78ff9 100644
--- a/src/app/dialogs/video-info-dialog/video-info-dialog.component.html
+++ b/src/app/dialogs/video-info-dialog/video-info-dialog.component.html
@@ -37,7 +37,8 @@
         <input [(ngModel)]="new_file.thumbnailURL" matInput [disabled]="!editing || new_file.thumbnailPath">
     </mat-form-field>
     <mat-form-field *ngIf="initialized && postsService.categories" class="info-field">
-        <mat-select placeholder="Category" i18n-placeholder="Category" [value]="category" (selectionChange)="categoryChanged($event)" [compareWith]="categoryComparisonFunction" [disabled]="!editing">
+        <mat-label i18n="Category">Category</mat-label>
+        <mat-select [value]="category" (selectionChange)="categoryChanged($event)" [compareWith]="categoryComparisonFunction" [disabled]="!editing">
             <mat-option [value]="{}">
                 N/A
             </mat-option>