Removes Edge support. (#893)

* Removes Edge support.

* Removes unused dependency.

modules/RTC/RTCUtils.js

 import Resolutions from '../../service/RTC/Resolutions';
 import browser from '../browser';
 import RTCEvents from '../../service/RTC/RTCEvents';
-import ortcRTCPeerConnection from './ortc/RTCPeerConnection';
 import screenObtainer from './ScreenObtainer';
 import SDPUtil from '../xmpp/SDPUtil';
 import Statistics from '../statistics/statistics';
                     return this.audioTracks;
                 };
             }
-        } else if (browser.isEdge()) {
-            this.RTCPeerConnectionType = ortcRTCPeerConnection;
-
-            this.attachMediaStream
-                = wrapAttachMediaStream((element, stream) => {
-                    defaultSetVideoSrc(element, stream);
-                });
-
-            // ORTC does not generate remote MediaStreams so those are
-            // manually created by the ORTC shim. This means that their
-            // id (internally generated) does not match the stream id
-            // signaled into the remote SDP. Therefore, the shim adds a
-            // custom jitsiRemoteId property with the original stream id.
-            this.getStreamID = function(stream) {
-                const id = stream.jitsiRemoteId || stream.id;
-
-                return SDPUtil.filterSpecialChars(id);
-            };
-
-            // Remote MediaStreamTracks generated by ORTC (within a
-            // RTCRtpReceiver) have an internally/random id which does not match
-            // the track id signaled in the remote SDP. The shim adds a custom
-            // jitsi-id property with the original track id.
-            this.getTrackID = track => track.jitsiRemoteId || track.id;
         } else {
             const message = 'Endpoint does not appear to be WebRTC-capable';
 

modules/RTC/ortc/README.md

-# ORTC shim for Edge
-
-The `modules/RTC/ortc` folder contains a `RTCPeerConnection` shim for Edge based on ORTC among with other shims (such as `RTCSessionDescription`) and some utilities/helpers to deal with both, SDP and ORTC objects.
-
-
-## Files in `ortc` folder
-
-
-### RTCPeerConnection.js
-
-Exports a `RTCPeerConnection` shim. The interface is based on the [W3C specification of 2015](https://www.w3.org/TR/2015/WD-webrtc-20150210/), which matches (mostly) the current implementation of Chrome.
-
-It also implements Plan-B for multi-stream.
-
-
-#### Limitations
-
-* BUNDLE is assumed (single transport for all the local and remote media streams).
-* `rtcp-mux` is assumed (not a real problem nowadays).
-* Calling `createOffer()` is not implemented, so P2P mode is not supported (`browser.supportsP2P()` returns `false`).
-* Calling `setRemoteDescription()` with a SDP answer with mangled SSRC values is currently unsupported (those new SSRC values will not be used for sending media).
-* If the app calls `createAnswer()`, mangles SSRC values, and applies by calling `setLocalDescription()`, those new SSRC values are currently ignored.
-* Simulcast not supported (currently Edge supports `maxFramerate` per encoding but it does not support `maxBitrate`, `resolutionScale` or `framerateScale`, so it's not worth it).
-* `RTCDataChannel` not supported (Edge does not implement it).
-* `addIceCandidate()` not supported (it's never called anyway, at least in non P2P mode). Edge does not support Trickle-ICE which means that, after reading all the remote ICE candidates from the remote SDP and applying them, an "empty" candidate must be immediately applied (otherwise the `RTCIceTransport` never enters the "completed" state) and, after that, new remote candidates cannot be added.
-
-
-### RTCSessionDescription.js
-
-Exports a `RTCSessionDescription` shim.
-
-The interface is the same as in the WebRTC specification (although internally it also handles a Object representation of the SDP generated by the [sdp-transform](https://www.npmjs.com/package/sdp-transform) library).
-
-
-### errors.js
-
-Exports some `Error` based classes needed in WebRTC (such as `InvalidStateError`).
-
-
-### utils.js
-
-Some utilities related to SDP and ORTC.
-
-
-## Issues
-
-
-### ICE error: Wrong MESSAGE-INTEGRITY
-
-Randomly, ICE Binding Requests from Edge are replied with WRONG MESSAGE-INTEGRITY error by the bridge. It seems that Edge, sometimes, adds a extra byte in the `USERNAME` attribute producing such an issue.
-
-* GitHub issue: https://github.com/jitsi/lib-jitsi-meet/issues/498
-* Edge issue: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/12332457/
-
-
-### Wrong VP8 video from Edge to Chrome if ENABLE_VP8_PICID_REWRITING=True
-
-When VP8 rewriting is enabled in the bridge, VP8 video produced by Edge is wrongly rendered in Chrome/Firefox.
-
-* GitHub issue: https://github.com/jitsi/lib-jitsi-meet/issues/520
-
-
-### InvalidStateError when calling send() / receive()
-
-Randomly, sending a new track or receiving a new track fails with `InvalidStateError`. The issue reported in Edge tracker includes a way to reproduce it.
-
-As per conversations with Edge developers, it seems that Edge has some kind of limitation in the number of VP8 streams it can encode/decode at the same time. However, in my tests I've been able to send a VP8 stream and receive 5 VP8 streams at the same time.
-
-The problem happens much more often when calling `rtpSender.stop()` or `rtpReceiver.stop()` and then creating a new `RtpSender` or `RtpReceiver` and calling `send()` or `receive()` on it.
-
-* GitHub issue: https://github.com/jitsi/lib-jitsi-meet/issues/519
-* Edge issue: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/12459320/
-
-
-### pc.getStats(): no way to get usable and needed stats
-
-WebRTC stats produced by Edge don't provide enough information to determine resolution, framerate or bitrate.
-
-* GitHub issue: https://github.com/jitsi/lib-jitsi-meet/issues/523
-
-
-### Device selection does not work
-
-In Edge, the device selector UI shows grayed drop down lists for mic and webcam.
-
-* GitHub issue: https://github.com/jitsi/lib-jitsi-meet/issues/530
-
-
-### Other issues in Edge
-
-Those issues/bugs in Edge do not affect lib-jitsi-meet because the code avoids them. However, for future changes, it's important to consider them:
-
-* `RtpReceiver.track` returns a different `MediaStreamTrack` every time: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/12399497/

modules/RTC/ortc/RTCSessionDescription.js

-import sdpTransform from 'sdp-transform';
-
-/**
- * RTCSessionDescription implementation.
- */
-export default class RTCSessionDescription {
-    /**
-     * RTCSessionDescription constructor.
-     * @param {Object} [data]
-     * @param {String} [data.type] - 'offer' / 'answer'.
-     * @param {String} [data.sdp] - SDP string.
-     * @param {Object} [data._sdpObject] - SDP object generated by the
-     * sdp-transform library.
-     */
-    constructor(data) {
-        // @type {String}
-        this._sdp = null;
-
-        // @type {Object}
-        this._sdpObject = null;
-
-        // @type {String}
-        this._type = null;
-
-        switch (data.type) {
-        case 'offer':
-            break;
-        case 'answer':
-            break;
-        default:
-            throw new TypeError(`invalid type "${data.type}"`);
-        }
-
-        this._type = data.type;
-
-        if (typeof data.sdp === 'string') {
-            this._sdp = data.sdp;
-            try {
-                this._sdpObject = sdpTransform.parse(data.sdp);
-            } catch (error) {
-                throw new Error(`invalid sdp: ${error}`);
-            }
-        } else if (typeof data._sdpObject === 'object') {
-            this._sdpObject = data._sdpObject;
-            try {
-                this._sdp = sdpTransform.write(data._sdpObject);
-            } catch (error) {
-                throw new Error(`invalid sdp object: ${error}`);
-            }
-        } else {
-            throw new TypeError('invalid sdp or _sdpObject');
-        }
-    }
-
-    /**
-     * Get sdp field.
-     * @return {String}
-     */
-    get sdp() {
-        return this._sdp;
-    }
-
-    /**
-     * Set sdp field.
-     * NOTE: This is not allowed per spec, but lib-jitsi-meet uses it.
-     * @param {String} sdp
-     */
-    set sdp(sdp) {
-        try {
-            this._sdpObject = sdpTransform.parse(sdp);
-        } catch (error) {
-            throw new Error(`invalid sdp: ${error}`);
-        }
-
-        this._sdp = sdp;
-    }
-
-    /**
-     * Gets the internal sdp object.
-     * @return {Object}
-     * @private
-     */
-    get sdpObject() {
-        return this._sdpObject;
-    }
-
-    /**
-     * Get type field.
-     * @return {String}
-     */
-    get type() {
-        return this._type;
-    }
-
-    /**
-     * Returns an object with type and sdp fields.
-     * @return {Object}
-     */
-    toJSON() {
-        return {
-            sdp: this._sdp,
-            type: this._type
-        };
-    }
-}

modules/RTC/ortc/errors.js

-/**
- * Create a class inheriting from Error.
- */
-function createErrorClass(name) {
-    const klass = class extends Error {
-        /**
-         * Custom error class constructor.
-         * @param {string} message
-         */
-        constructor(message) {
-            super(message);
-
-            // Override `name` property value and make it non enumerable.
-            Object.defineProperty(this, 'name', { value: name });
-        }
-    };
-
-    return klass;
-}
-
-export const InvalidStateError = createErrorClass('InvalidStateError');

modules/RTC/ortc/utils.js

-/* global RTCRtpReceiver */
-
-import sdpTransform from 'sdp-transform';
-
-/**
- * Extract RTP capabilities from remote description.
- * @param {Object} sdpObject - Remote SDP object generated by sdp-transform.
- * @return {RTCRtpCapabilities}
- */
-export function extractCapabilities(sdpObject) {
-    // Map of RtpCodecParameters indexed by payload type.
-    const codecsMap = new Map();
-
-    // Array of RtpHeaderExtensions.
-    const headerExtensions = [];
-
-    for (const m of sdpObject.media) {
-        // Media kind.
-        const kind = m.type;
-
-        if (kind !== 'audio' && kind !== 'video') {
-            continue; // eslint-disable-line no-continue
-        }
-
-        // Get codecs.
-        for (const rtp of m.rtp) {
-            const codec = {
-                clockRate: rtp.rate,
-                kind,
-                mimeType: `${kind}/${rtp.codec}`,
-                name: rtp.codec,
-                numChannels: rtp.encoding || 1,
-                parameters: {},
-                preferredPayloadType: rtp.payload,
-                rtcpFeedback: []
-            };
-
-            codecsMap.set(codec.preferredPayloadType, codec);
-        }
-
-        // Get codec parameters.
-        for (const fmtp of m.fmtp || []) {
-            const parameters = sdpTransform.parseFmtpConfig(fmtp.config);
-            const codec = codecsMap.get(fmtp.payload);
-
-            if (!codec) {
-                continue; // eslint-disable-line no-continue
-            }
-
-            codec.parameters = parameters;
-        }
-
-        // Get RTCP feedback for each codec.
-        for (const fb of m.rtcpFb || []) {
-            const codec = codecsMap.get(fb.payload);
-
-            if (!codec) {
-                continue; // eslint-disable-line no-continue
-            }
-
-            codec.rtcpFeedback.push({
-                parameter: fb.subtype || '',
-                type: fb.type
-            });
-        }
-
-        // Get RTP header extensions.
-        for (const ext of m.ext || []) {
-            const preferredId = ext.value;
-            const uri = ext.uri;
-            const headerExtension = {
-                kind,
-                uri,
-                preferredId
-            };
-
-            // Check if already present.
-            const duplicated = headerExtensions.find(savedHeaderExtension =>
-                headerExtension.kind === savedHeaderExtension.kind
-                    && headerExtension.uri === savedHeaderExtension.uri
-            );
-
-            if (!duplicated) {
-                headerExtensions.push(headerExtension);
-            }
-        }
-    }
-
-    return {
-        codecs: Array.from(codecsMap.values()),
-        fecMechanisms: [], // TODO
-        headerExtensions
-    };
-}
-
-/**
- * Extract DTLS parameters from remote description.
- * @param {Object} sdpObject - Remote SDP object generated by sdp-transform.
- * @return {RTCDtlsParameters}
- */
-export function extractDtlsParameters(sdpObject) {
-    const media = getFirstActiveMediaSection(sdpObject);
-    const fingerprint = media.fingerprint || sdpObject.fingerprint;
-    let role;
-
-    switch (media.setup) {
-    case 'active':
-        role = 'client';
-        break;
-    case 'passive':
-        role = 'server';
-        break;
-    case 'actpass':
-        role = 'auto';
-        break;
-    }
-
-    return {
-        role,
-        fingerprints: [
-            {
-                algorithm: fingerprint.type,
-                value: fingerprint.hash
-            }
-        ]
-    };
-}
-
-/**
- * Extract ICE candidates from remote description.
- * NOTE: This implementation assumes a single BUNDLEd transport and rtcp-mux.
- * @param {Object} sdpObject - Remote SDP object generated by sdp-transform.
- * @return {sequence<RTCIceCandidate>}
- */
-export function extractIceCandidates(sdpObject) {
-    const media = getFirstActiveMediaSection(sdpObject);
-    const candidates = [];
-
-    for (const c of media.candidates) {
-        // Ignore RTCP candidates (we assume rtcp-mux).
-        if (c.component !== 1) {
-            continue; // eslint-disable-line no-continue
-        }
-
-        const candidate = {
-            foundation: c.foundation,
-            ip: c.ip,
-            port: c.port,
-            priority: c.priority,
-            protocol: c.transport.toLowerCase(),
-            type: c.type
-        };
-
-        candidates.push(candidate);
-    }
-
-    return candidates;
-}
-
-/**
- * Extract ICE parameters from remote description.
- * NOTE: This implementation assumes a single BUNDLEd transport.
- * @param {Object} sdpObject - Remote SDP object generated by sdp-transform.
- * @return {RTCIceParameters}
- */
-export function extractIceParameters(sdpObject) {
-    const media = getFirstActiveMediaSection(sdpObject);
-    const usernameFragment = media.iceUfrag;
-    const password = media.icePwd;
-    const icelite = sdpObject.icelite === 'ice-lite';
-
-    return {
-        icelite,
-        password,
-        usernameFragment
-    };
-}
-
-/**
- * Extract MID values from remote description.
- * @param {Object} sdpObject - Remote SDP object generated by sdp-transform.
- * @return {map<String, String>} Ordered Map with MID as key and kind as value.
- */
-export function extractMids(sdpObject) {
-    const midToKind = new Map();
-
-    // Ignore disabled media sections.
-    for (const m of sdpObject.media) {
-        midToKind.set(m.mid, m.type);
-    }
-
-    return midToKind;
-}
-
-/**
- * Extract tracks information.
- * @param {Object} sdpObject - Remote SDP object generated by sdp-transform.
- * @return {Map}
- */
-export function extractTrackInfos(sdpObject) {
-    // Map with info about receiving media.
-    // - index: Media SSRC
-    // - value: Object
-    //   - kind: 'audio' / 'video'
-    //   - ssrc: Media SSRC
-    //   - rtxSsrc: RTX SSRC (may be unset)
-    //   - streamId: MediaStream.jitsiRemoteId
-    //   - trackId: MediaStreamTrack.jitsiRemoteId
-    //   - cname: CNAME
-    // @type {map<Number, Object>}
-    const infos = new Map();
-
-    // Map with stream SSRC as index and associated RTX SSRC as value.
-    // @type {map<Number, Number>}
-    const rtxMap = new Map();
-
-    // Set of RTX SSRC values.
-    const rtxSet = new Set();
-
-    for (const m of sdpObject.media) {
-        const kind = m.type;
-
-        if (kind !== 'audio' && kind !== 'video') {
-            continue; // eslint-disable-line no-continue
-        }
-
-        // Get RTX information.
-        for (const ssrcGroup of m.ssrcGroups || []) {
-            // Just consider FID.
-            if (ssrcGroup.semantics !== 'FID') {
-                continue; // eslint-disable-line no-continue
-            }
-
-            const ssrcs
-                = ssrcGroup.ssrcs.split(' ').map(ssrc => Number(ssrc));
-            const ssrc = ssrcs[0];
-            const rtxSsrc = ssrcs[1];
-
-            rtxMap.set(ssrc, rtxSsrc);
-            rtxSet.add(rtxSsrc);
-        }
-
-        for (const ssrcObject of m.ssrcs || []) {
-            const ssrc = ssrcObject.id;
-
-            // Ignore RTX.
-            if (rtxSet.has(ssrc)) {
-                continue; // eslint-disable-line no-continue
-            }
-
-            let info = infos.get(ssrc);
-
-            if (!info) {
-                info = {
-                    kind,
-                    rtxSsrc: rtxMap.get(ssrc),
-                    ssrc
-                };
-
-                infos.set(ssrc, info);
-            }
-
-            switch (ssrcObject.attribute) {
-            case 'cname': {
-                info.cname = ssrcObject.value;
-                break;
-            }
-            case 'msid': {
-                const values = ssrcObject.value.split(' ');
-                const streamId = values[0];
-                const trackId = values[1];
-
-                info.streamId = streamId;
-                info.trackId = trackId;
-                break;
-            }
-            case 'mslabel': {
-                const streamId = ssrcObject.value;
-
-                info.streamId = streamId;
-                break;
-            }
-            case 'label': {
-                const trackId = ssrcObject.value;
-
-                info.trackId = trackId;
-                break;
-            }
-            }
-        }
-    }
-
-    return infos;
-}
-
-/**
- * Get local ORTC RTP capabilities filtered and adapted to the given remote RTP
- * capabilities.
- * @param {RTCRtpCapabilities} filterWithCapabilities - RTP capabilities to
- * filter with.
- * @return {RTCRtpCapabilities}
- */
-export function getLocalCapabilities(filterWithCapabilities) {
-    const localFullCapabilities = RTCRtpReceiver.getCapabilities();
-    const localCapabilities = {
-        codecs: [],
-        fecMechanisms: [],
-        headerExtensions: []
-    };
-
-    // Map of RTX and codec payloads.
-    // - index: Codec payloadType
-    // - value: Associated RTX payloadType
-    // @type {map<Number, Number>}
-    const remoteRtxMap = new Map();
-
-    // Set codecs.
-    for (const remoteCodec of filterWithCapabilities.codecs) {
-        const remoteCodecName = remoteCodec.name.toLowerCase();
-
-        if (remoteCodecName === 'rtx') {
-            remoteRtxMap.set(
-                remoteCodec.parameters.apt, remoteCodec.preferredPayloadType);
-
-            continue; // eslint-disable-line no-continue
-        }
-
-        const localCodec = localFullCapabilities.codecs.find(codec =>
-            codec.name.toLowerCase() === remoteCodecName
-                && codec.kind === remoteCodec.kind
-                && codec.clockRate === remoteCodec.clockRate
-        );
-
-        if (!localCodec) {
-            continue; // eslint-disable-line no-continue
-        }
-
-        const codec = {
-            clockRate: localCodec.clockRate,
-            kind: localCodec.kind,
-            mimeType: `${localCodec.kind}/${localCodec.name}`,
-            name: localCodec.name,
-            numChannels: localCodec.numChannels || 1,
-            parameters: {},
-            preferredPayloadType: remoteCodec.preferredPayloadType,
-            rtcpFeedback: []
-        };
-
-        for (const remoteParamName of Object.keys(remoteCodec.parameters)) {
-            const remoteParamValue
-                = remoteCodec.parameters[remoteParamName];
-
-            for (const localParamName of Object.keys(localCodec.parameters)) {
-                const localParamValue
-                    = localCodec.parameters[localParamName];
-
-                if (localParamName !== remoteParamName) {
-                    continue; // eslint-disable-line no-continue
-                }
-
-                // TODO: We should consider much more cases here, but Edge
-                // does not support many codec parameters.
-                if (localParamValue === remoteParamValue) {
-                    // Use this RTP parameter.
-                    codec.parameters[localParamName] = localParamValue;
-                    break;
-                }
-            }
-        }
-
-        for (const remoteFb of remoteCodec.rtcpFeedback) {
-            const localFb = localCodec.rtcpFeedback.find(fb =>
-                fb.type === remoteFb.type
-                    && fb.parameter === remoteFb.parameter
-            );
-
-            if (localFb) {
-                // Use this RTCP feedback.
-                codec.rtcpFeedback.push(localFb);
-            }
-        }
-
-        // Use this codec.
-        localCapabilities.codecs.push(codec);
-    }
-
-    // Add RTX for video codecs.
-    for (const codec of localCapabilities.codecs) {
-        const payloadType = codec.preferredPayloadType;
-
-        if (!remoteRtxMap.has(payloadType)) {
-            continue; // eslint-disable-line no-continue
-        }
-
-        const rtxCodec = {
-            clockRate: codec.clockRate,
-            kind: codec.kind,
-            mimeType: `${codec.kind}/rtx`,
-            name: 'rtx',
-            parameters: {
-                apt: payloadType
-            },
-            preferredPayloadType: remoteRtxMap.get(payloadType),
-            rtcpFeedback: []
-        };
-
-        // Add RTX codec.
-        localCapabilities.codecs.push(rtxCodec);
-    }
-
-    // Add RTP header extensions.
-    for (const remoteExtension of filterWithCapabilities.headerExtensions) {
-        const localExtension
-            = localFullCapabilities.headerExtensions.find(extension =>
-                extension.kind === remoteExtension.kind
-                    && extension.uri === remoteExtension.uri
-            );
-
-        if (localExtension) {
-            const extension = {
-                kind: localExtension.kind,
-                preferredEncrypt: Boolean(remoteExtension.preferredEncrypt),
-                preferredId: remoteExtension.preferredId,
-                uri: localExtension.uri
-            };
-
-            // Use this RTP header extension.
-            localCapabilities.headerExtensions.push(extension);
-        }
-    }
-
-    // Add FEC mechanisms.
-    // NOTE: We don't support FEC yet and, in fact, neither does Edge.
-    for (const remoteFecMechanism of filterWithCapabilities.fecMechanisms) {
-        const localFecMechanism
-            = localFullCapabilities.fecMechanisms.find(fec =>
-                fec === remoteFecMechanism
-            );
-
-        if (localFecMechanism) {
-            // Use this FEC mechanism.
-            localCapabilities.fecMechanisms.push(localFecMechanism);
-        }
-    }
-
-    return localCapabilities;
-}
-
-/**
- * Get the first acive media section.
- * @param {Object} sdpObject - SDP object generated by sdp-transform.
- * @return {Object} SDP media section as parsed by sdp-transform.
- */
-function getFirstActiveMediaSection(sdpObject) {
-    return sdpObject.media.find(m =>
-        m.iceUfrag && m.port !== 0
-    );
-}

modules/browser/BrowserCapabilities.js

      */
     isSupported() {
         return this.isChromiumBased()
-            || this.isEdge()
             || this.isFirefox()
             || this.isReactNative()
             || this.isSafariWithWebrtc();

package-lock.json

         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
         },
         "aproba": {
           "version": "1.2.0",
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
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           "version": "1.0.2",
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
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           "version": "1.0.0",
           "bundled": true,
           "dev": true,
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           "requires": {
             "number-is-nan": "^1.0.0"
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           }
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true,
-          "optional": true
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         },
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           "version": "2.2.4",
           "bundled": true,
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-          "optional": true,
           "requires": {
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             "yallist": "^3.0.0"
           "version": "0.5.1",
           "bundled": true,
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           }
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true,
-          "optional": true
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         },
         "object-assign": {
           "version": "4.1.1",
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "wrappy": "1"
           }
         "safe-buffer": {
           "version": "5.1.1",
           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
         },
         "safer-buffer": {
           "version": "2.1.2",
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
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             "is-fullwidth-code-point": "^1.0.0",
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
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           "requires": {
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           }
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true,
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+          "dev": true
         },
         "yallist": {
           "version": "3.0.2",
           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
         }
       }
     },
             "balanced-match": {
               "version": "1.0.0",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             },
             "brace-expansion": {
               "version": "1.1.11",
               "bundled": true,
               "dev": true,
-              "optional": true,
               "requires": {
                 "balanced-match": "^1.0.0",
                 "concat-map": "0.0.1"
             "concat-map": {
               "version": "0.0.1",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             },
             "console-control-strings": {
               "version": "1.1.0",
               "version": "3.0.4",
               "bundled": true,
               "dev": true,
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               "requires": {
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               }
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       "dev": true
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-    "yaeti": {
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-      "resolved": "https://registry.npmjs.org/yaeti/-/yaeti-1.0.1.tgz",
-      "integrity": "sha1-IX0Eu83LvYbMR45GVapMKMST3r8="
-    },
     "yallist": {
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       "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",

package.json

     "sdp-transform": "2.3.0",
     "strophe.js": "1.2.16",
     "strophejs-plugin-disco": "0.0.2",
-    "webrtc-adapter": "github:webrtc/adapter#1eec19782b4058d186341263e7d049cea3e3290a",
-    "yaeti": "1.0.1"
+    "webrtc-adapter": "github:webrtc/adapter#1eec19782b4058d186341263e7d049cea3e3290a"
   },
   "devDependencies": {
     "@babel/core": "7.1.2",