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a7532b5f55
Actively disabling support for these browsers allows us to catch and report the problem rather than trying to connect and failing for unknown reasons.
41 lines
1.3 KiB
JavaScript
41 lines
1.3 KiB
JavaScript
// If there is no WebSocket, try MozWebSocket (support for some old browsers)
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try {
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module.exports = WebSocket;
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} catch(err) {
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module.exports = MozWebSocket;
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}
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// Some versions of Safari Mac 5 and Safari iOS 4 seem to support websockets,
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// but can't communicate with websocketpp, which is what rippled uses.
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//
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// Note that we check for both the WebSocket protocol version the browser seems
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// to implement as well as the user agent etc. The reason is that we want to err
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// on the side of trying to connect since we don't want to accidentally disable
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// a browser that would normally work fine.
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var match, versionRegexp = /Version\/(\d+)\.(\d+)(?:\.(\d+))?.*Safari\//;
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if (
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// Is browser
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"object" === typeof navigator &&
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"string" === typeof navigator.userAgent &&
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// Is Safari
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(match = versionRegexp.exec(navigator.userAgent)) &&
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// And uses the old websocket protocol
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2 === window.WebSocket.CLOSED
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) {
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// Is iOS
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if (/iP(hone|od|ad)/.test(navigator.platform)) {
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// Below version 5 is broken
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if (+match[1] < 5) {
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module.exports = void(0);
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}
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// Is any other Mac OS
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// If you want to refactor this code, be careful, iOS user agents contain the
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// string "like Mac OS X".
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} else if (navigator.appVersion.indexOf("Mac") !== -1) {
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// Below version 6 is broken
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if (+match[1] < 6) {
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module.exports = void(0);
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}
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}
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}
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