diff --git a/package.json b/package.json
index 2ed2ccabd7..6b269a06ee 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,6 @@
     "extract-zip": "^1.6.6",
     "https-proxy-agent": "^3.0.0",
     "jpeg-js": "^0.3.6",
-    "mime": "^2.0.3",
     "pngjs": "^3.4.0",
     "progress": "^2.0.3",
     "proxy-from-env": "^1.0.0",
@@ -56,7 +55,6 @@
     "@types/debug": "0.0.31",
     "@types/extract-zip": "^1.6.2",
     "@types/jpeg-js": "^0.3.7",
-    "@types/mime": "^2.0.0",
     "@types/node": "^8.10.34",
     "@types/pngjs": "^3.4.0",
     "@types/proxy-from-env": "^1.0.0",
@@ -69,6 +67,7 @@
     "cross-env": "^5.0.5",
     "eslint": "^6.6.0",
     "esprima": "^4.0.0",
+    "formidable": "^1.2.1",
     "minimist": "^1.2.0",
     "ncp": "^2.0.0",
     "node-stream-zip": "^1.8.2",
diff --git a/src/dom.ts b/src/dom.ts
index c3d51df735..50c65809a3 100644
--- a/src/dom.ts
+++ b/src/dom.ts
@@ -432,7 +432,7 @@ export class ElementHandle<T extends Node = Node> extends js.JSHandle<T> {
       if (typeof item === 'string') {
         const file: types.FilePayload = {
           name: platform.basename(item),
-          type: 'application/octet-stream',
+          type: platform.getMimeType(item),
           data: await platform.readFileAsync(item, 'base64')
         };
         return file;
@@ -620,7 +620,7 @@ export function waitForSelectorTask(selector: string, visibility: types.Visibili
 export const setFileInputFunction = async (element: HTMLInputElement, payloads: types.FilePayload[]) => {
   const files = await Promise.all(payloads.map(async (file: types.FilePayload) => {
     const result = await fetch(`data:${file.type};base64,${file.data}`);
-    return new File([await result.blob()], file.name);
+    return new File([await result.blob()], file.name, {type: file.type});
   }));
   const dt = new DataTransfer();
   for (const file of files)
diff --git a/src/platform.ts b/src/platform.ts
index 69009191ba..6f935b1c24 100644
--- a/src/platform.ts
+++ b/src/platform.ts
@@ -21,7 +21,6 @@ import * as nodeFS from 'fs';
 import * as nodePath from 'path';
 import * as nodeDebug from 'debug';
 import * as nodeBuffer from 'buffer';
-import * as mime from 'mime';
 import * as jpeg from 'jpeg-js';
 import * as png from 'pngjs';
 import * as http from 'http';
@@ -213,9 +212,9 @@ export async function closeFdAsync(fd: number): Promise<void> {
   return await promisify(nodeFS.close)(fd);
 }
 
-export function getMimeType(file: string): string | null {
-  assertFileAccess();
-  return mime.getType(file);
+export function getMimeType(file: string): string {
+  const extension = file.substring(file.lastIndexOf('.') + 1);
+  return extensionToMime[extension] || 'application/octet-stream';
 }
 
 export function urlMatches(urlString: string, match: types.URLMatch | undefined): boolean {
@@ -358,3 +357,203 @@ export class WebSocketTransport implements ConnectionTransport {
     this._ws.close();
   }
 }
+
+const extensionToMime: { [key: string]: string } = {
+  'ai': 'application/postscript',
+  'apng': 'image/apng',
+  'appcache': 'text/cache-manifest',
+  'au': 'audio/basic',
+  'bmp': 'image/bmp',
+  'cer': 'application/pkix-cert',
+  'cgm': 'image/cgm',
+  'coffee': 'text/coffeescript',
+  'conf': 'text/plain',
+  'crl': 'application/pkix-crl',
+  'css': 'text/css',
+  'csv': 'text/csv',
+  'def': 'text/plain',
+  'doc': 'application/msword',
+  'dot': 'application/msword',
+  'drle': 'image/dicom-rle',
+  'dtd': 'application/xml-dtd',
+  'ear': 'application/java-archive',
+  'emf': 'image/emf',
+  'eps': 'application/postscript',
+  'exr': 'image/aces',
+  'fits': 'image/fits',
+  'g3': 'image/g3fax',
+  'gbr': 'application/rpki-ghostbusters',
+  'gif': 'image/gif',
+  'glb': 'model/gltf-binary',
+  'gltf': 'model/gltf+json',
+  'gz': 'application/gzip',
+  'h261': 'video/h261',
+  'h263': 'video/h263',
+  'h264': 'video/h264',
+  'heic': 'image/heic',
+  'heics': 'image/heic-sequence',
+  'heif': 'image/heif',
+  'heifs': 'image/heif-sequence',
+  'htm': 'text/html',
+  'html': 'text/html',
+  'ics': 'text/calendar',
+  'ief': 'image/ief',
+  'ifb': 'text/calendar',
+  'iges': 'model/iges',
+  'igs': 'model/iges',
+  'in': 'text/plain',
+  'ini': 'text/plain',
+  'jade': 'text/jade',
+  'jar': 'application/java-archive',
+  'jls': 'image/jls',
+  'jp2': 'image/jp2',
+  'jpe': 'image/jpeg',
+  'jpeg': 'image/jpeg',
+  'jpf': 'image/jpx',
+  'jpg': 'image/jpeg',
+  'jpg2': 'image/jp2',
+  'jpgm': 'video/jpm',
+  'jpgv': 'video/jpeg',
+  'jpm': 'image/jpm',
+  'jpx': 'image/jpx',
+  'js': 'application/javascript',
+  'json': 'application/json',
+  'json5': 'application/json5',
+  'jsx': 'text/jsx',
+  'jxr': 'image/jxr',
+  'kar': 'audio/midi',
+  'ktx': 'image/ktx',
+  'less': 'text/less',
+  'list': 'text/plain',
+  'litcoffee': 'text/coffeescript',
+  'log': 'text/plain',
+  'm1v': 'video/mpeg',
+  'm21': 'application/mp21',
+  'm2a': 'audio/mpeg',
+  'm2v': 'video/mpeg',
+  'm3a': 'audio/mpeg',
+  'm4a': 'audio/mp4',
+  'm4p': 'application/mp4',
+  'man': 'text/troff',
+  'manifest': 'text/cache-manifest',
+  'markdown': 'text/markdown',
+  'mathml': 'application/mathml+xml',
+  'md': 'text/markdown',
+  'mdx': 'text/mdx',
+  'me': 'text/troff',
+  'mesh': 'model/mesh',
+  'mft': 'application/rpki-manifest',
+  'mid': 'audio/midi',
+  'midi': 'audio/midi',
+  'mj2': 'video/mj2',
+  'mjp2': 'video/mj2',
+  'mjs': 'application/javascript',
+  'mml': 'text/mathml',
+  'mov': 'video/quicktime',
+  'mp2': 'audio/mpeg',
+  'mp21': 'application/mp21',
+  'mp2a': 'audio/mpeg',
+  'mp3': 'audio/mpeg',
+  'mp4': 'video/mp4',
+  'mp4a': 'audio/mp4',
+  'mp4s': 'application/mp4',
+  'mp4v': 'video/mp4',
+  'mpe': 'video/mpeg',
+  'mpeg': 'video/mpeg',
+  'mpg': 'video/mpeg',
+  'mpg4': 'video/mp4',
+  'mpga': 'audio/mpeg',
+  'mrc': 'application/marc',
+  'ms': 'text/troff',
+  'msh': 'model/mesh',
+  'n3': 'text/n3',
+  'oga': 'audio/ogg',
+  'ogg': 'audio/ogg',
+  'ogv': 'video/ogg',
+  'ogx': 'application/ogg',
+  'otf': 'font/otf',
+  'p10': 'application/pkcs10',
+  'p7c': 'application/pkcs7-mime',
+  'p7m': 'application/pkcs7-mime',
+  'p7s': 'application/pkcs7-signature',
+  'p8': 'application/pkcs8',
+  'pdf': 'application/pdf',
+  'pki': 'application/pkixcmp',
+  'pkipath': 'application/pkix-pkipath',
+  'png': 'image/png',
+  'ps': 'application/postscript',
+  'pskcxml': 'application/pskc+xml',
+  'qt': 'video/quicktime',
+  'rmi': 'audio/midi',
+  'rng': 'application/xml',
+  'roa': 'application/rpki-roa',
+  'roff': 'text/troff',
+  'rsd': 'application/rsd+xml',
+  'rss': 'application/rss+xml',
+  'rtf': 'application/rtf',
+  'rtx': 'text/richtext',
+  's3m': 'audio/s3m',
+  'sgi': 'image/sgi',
+  'sgm': 'text/sgml',
+  'sgml': 'text/sgml',
+  'shex': 'text/shex',
+  'shtml': 'text/html',
+  'sil': 'audio/silk',
+  'silo': 'model/mesh',
+  'slim': 'text/slim',
+  'slm': 'text/slim',
+  'snd': 'audio/basic',
+  'spx': 'audio/ogg',
+  'stl': 'model/stl',
+  'styl': 'text/stylus',
+  'stylus': 'text/stylus',
+  'svg': 'image/svg+xml',
+  'svgz': 'image/svg+xml',
+  't': 'text/troff',
+  't38': 'image/t38',
+  'text': 'text/plain',
+  'tfx': 'image/tiff-fx',
+  'tif': 'image/tiff',
+  'tiff': 'image/tiff',
+  'tr': 'text/troff',
+  'ts': 'video/mp2t',
+  'tsv': 'text/tab-separated-values',
+  'ttc': 'font/collection',
+  'ttf': 'font/ttf',
+  'ttl': 'text/turtle',
+  'txt': 'text/plain',
+  'uri': 'text/uri-list',
+  'uris': 'text/uri-list',
+  'urls': 'text/uri-list',
+  'vcard': 'text/vcard',
+  'vrml': 'model/vrml',
+  'vtt': 'text/vtt',
+  'war': 'application/java-archive',
+  'wasm': 'application/wasm',
+  'wav': 'audio/wav',
+  'weba': 'audio/webm',
+  'webm': 'video/webm',
+  'webmanifest': 'application/manifest+json',
+  'webp': 'image/webp',
+  'wmf': 'image/wmf',
+  'woff': 'font/woff',
+  'woff2': 'font/woff2',
+  'wrl': 'model/vrml',
+  'x3d': 'model/x3d+xml',
+  'x3db': 'model/x3d+fastinfoset',
+  'x3dbz': 'model/x3d+binary',
+  'x3dv': 'model/x3d-vrml',
+  'x3dvz': 'model/x3d+vrml',
+  'x3dz': 'model/x3d+xml',
+  'xaml': 'application/xaml+xml',
+  'xht': 'application/xhtml+xml',
+  'xhtml': 'application/xhtml+xml',
+  'xm': 'audio/xm',
+  'xml': 'text/xml',
+  'xsd': 'application/xml',
+  'xsl': 'application/xml',
+  'xslt': 'application/xslt+xml',
+  'yaml': 'text/yaml',
+  'yml': 'text/yaml',
+  'zip': 'application/zip'
+};
diff --git a/src/web.webpack.config.js b/src/web.webpack.config.js
index 7144ab8d2c..8963d5eebd 100644
--- a/src/web.webpack.config.js
+++ b/src/web.webpack.config.js
@@ -46,7 +46,6 @@ module.exports = {
     'path': 'dummy',
     'debug': 'dummy',
     'buffer': 'dummy',
-    'mime': 'dummy',
     'jpeg-js': 'dummy',
     'pngjs': 'dummy',
     'http': 'dummy',
diff --git a/test/assets/input/fileupload.html b/test/assets/input/fileupload.html
index 55fd7c5006..85d2c7ce83 100644
--- a/test/assets/input/fileupload.html
+++ b/test/assets/input/fileupload.html
@@ -4,6 +4,9 @@
     <title>File upload test</title>
   </head>
   <body>
+    <form action="/input/fileupload.html">
       <input type="file">
+      <input type="submit">
+    </form>
   </body>
 </html>
\ No newline at end of file
diff --git a/test/input.spec.js b/test/input.spec.js
index d51ed762b4..8a1d58bfe0 100644
--- a/test/input.spec.js
+++ b/test/input.spec.js
@@ -16,6 +16,8 @@
  */
 
 const path = require('path');
+const fs = require('fs');
+const formidable = require('formidable');
 
 const FILE_TO_UPLOAD = path.join(__dirname, '/assets/file-to-upload.txt');
 
@@ -114,6 +116,41 @@ module.exports.describe = function({testRunner, expect, playwright, FFOX, CHROMI
       expect(await page.$eval('input', input => input.files.length)).toBe(1);
       expect(await page.$eval('input', input => input.files[0].name)).toBe('file-to-upload.txt');
     });
+    it('should detect mime type', async({page, server}) => {
+      let callback;
+      const result = new Promise(f => callback = f);
+      server.setRoute('/upload', async (req, res) => {
+        const form = new formidable.IncomingForm();
+        form.parse(req, function(err, fields, { file1, file2 }) {
+          expect(file1.name).toBe('file-to-upload.txt');
+          expect(file1.type).toBe('text/plain');
+          expect(
+              fs.readFileSync(file1.path).toString()
+            ).toBe(
+              fs.readFileSync(path.join(__dirname, '/assets/file-to-upload.txt')).toString()
+            );
+          expect(file2.name).toBe('file-to-upload.png');
+          expect(file2.type).toBe('image/png');
+          expect(
+            fs.readFileSync(file2.path).toString()
+          ).toBe(
+            fs.readFileSync(path.join(__dirname, '/assets/file-to-upload.png')).toString()
+          );
+        callback();
+        });
+      });
+      await page.goto(server.EMPTY_PAGE);
+      await page.setContent(`
+        <form action="/upload" method="post" enctype="multipart/form-data" >
+          <input type="file" name="file1">
+          <input type="file" name="file2">
+          <input type="submit" value="Submit">
+        </form>`)
+      await (await page.$('input[name=file1]')).setInputFiles(path.join(__dirname, '/assets/file-to-upload.txt'));
+      await (await page.$('input[name=file2]')).setInputFiles(path.join(__dirname, '/assets/file-to-upload.png'));
+      page.click('input[type=submit]');
+      await result;
+    });
     it('should be able to read selected file', async({page, server}) => {
       await page.setContent(`<input type=file>`);
       page.waitForEvent('filechooser').then(({element}) => element.setInputFiles(FILE_TO_UPLOAD));
diff --git a/test/test.js b/test/test.js
index 79d586db35..29406e637a 100644
--- a/test/test.js
+++ b/test/test.js
@@ -29,7 +29,7 @@ require('events').defaultMaxListeners *= parallel;
 
 let timeout = process.env.CI ? 30 * 1000 : 10 * 1000;
 if (!isNaN(process.env.TIMEOUT))
-  timeout = parseInt(process.env.TIMEOUT, 10);
+  timeout = parseInt(process.env.TIMEOUT * 1000, 10);
 const testRunner = new TestRunner({
   timeout,
   parallel,