Get Internet Explorer to run using Standalone runner

💬 Questions and Help

Hello guys, anyone got IEDriver to run when using wdio standalone? I receive following error: “The value of the ‘parameter’ attribute is not a JSON object”, idk why but it seems like wdio does not send any parameters to the ie server…

Error Log:

`.\IEDriverServer.exe --port=4448 --log-level=DEBUG I 2020-07-06 16:59:35:051 C:\Projects\webdriver\cpp\webdriver-server\server.cc(87) Starting WebDriver server on port: ‘4448’ on host: ‘’ I 2020-07-06 16:59:35:051 C:\Projects\webdriver\cpp\iedriver\IEServer.cpp(33) Driver version: 3.150.1.0 (64-bit) Started InternetExplorerDriver server (64-bit) 3.150.1.0 Listening on port 4448 Log level is set to DEBUG Only local connections are allowed D 2020-07-06 16:59:55:258 C:\Projects\webdriver\cpp\webdriver-server\server.cc(338) Command: POST /session D 2020-07-06 16:59:55:259 C:\Projects\webdriver\cpp\iedriver\IESession.cpp(60) Mutex acquired for session initalization D 2020-07-06 16:59:55:266 C:\Projects\webdriver\cpp\iedriver\IESession.cpp(116) Releasing session initialization mutex D 2020-07-06 16:59:55:266 C:\Projects\webdriver\cpp\webdriver-server\command.cc(36) Raw JSON command: { “name” : “newSession”, “locator” : { }, “parameters” : } W 2020-07-06 16:59:55:266 C:\Projects\webdriver\cpp\webdriver-server\command.cc(49) Failed to parse configuration due to * Line 1, Column 59 Syntax error: value, object or array expected.

JSON command: ‘{ “name” : “newSession”, “locator” : { }, “parameters” : }’ W 2020-07-06 16:59:55:267 C:\Projects\webdriver\cpp\webdriver-server\command.cc(72) The value of the ‘parameters’ attribute is not a JSON object. This is invalid for the WebDriver JSON Wire Protocol. D 2020-07-06 16:59:55:268 C:\Projects\webdriver\cpp\webdriver-server\command.cc(36) Raw JSON command: { “name” : “newSession”, “locator” : { }, “parameters” : }
W 2020-07-06 16:59:55:268 C:\Projects\webdriver\cpp\webdriver-server\command.cc(49) Failed to parse configuration due to * Line 1, Column 59 Syntax error: value, object or array expected.

JSON command: ‘{ “name” : “newSession”, “locator” : { }, “parameters” : }’ W 2020-07-06 16:59:55:269 C:\Projects\webdriver\cpp\webdriver-server\command.cc(72) The value of the ‘parameters’ attribute is not a JSON object. This is invalid for the WebDriver JSON Wire Protocol. D 2020-07-06 16:59:55:270 C:\Projects\webdriver\cpp\iedriver\IECommandExecutor.cpp(935) Setting serialized response to { “value” : { “error” : “invalid argument”, “message” : “parameters property of command is not a valid JSON object”, “stacktrace” : “” } } D 2020-07-06 16:59:55:271 C:\Projects\webdriver\cpp\iedriver\IECommandExecutor.cpp(936) Is waiting flag: 0 D 2020-07-06 16:59:55:281 C:\Projects\webdriver\cpp\webdriver-server\server.cc(421) Response: { “value” : { “error” : “invalid argument”, “message” : “parameters property of command is not a valid JSON object”, “stacktrace” : “” } } `

Reproducible example

First start IEDriver like this: “.\IEDriverServer.exe --port=4448 --log-level=DEBUG”

Then run this code: `const { remote } = require(“webdriverio”); let browsers = []

callTests(new Array(10)).then(erg => { console.log(“Done”) }) async function main(nsc, i) { //console.log(Started test: ${testcase}@${nsc} (${i+1}/${allNSC.length})) const browser = await remote({ capabilities : { browserName: “internet explorer”, }, port:4448, logLevel: “error”, outputDir: __dirname + “…/…/…/logs/” }) browsers[i] = browser

global.browser = browser;
let url = "https://www.nytimes.com/"
await browser.url(url)


await browser.deleteSession()
await delete browser
await delete browsers[i]

}

function callTests(arr, i) { return new Promise(res => { if (i == undefined) i = 0 let error = false main(arr[i], i).catch(async e => { console.error(e, arr[i]) error = e await browsers[i].deleteSession(); await delete browsers[i] }).then(async erg => { if (i < arr.length - 1) return res(callTests(arr, ++i)) else res() }); }) }`

Please note that this issue tracker is not a help form and this issue will be closed.

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[Westsaid]

Hello!

Good news: This bug will be closed in the next release of IEDriver!

[christian-bromann]

@Westsaid according to the logs the right data is being send to the driver:

2020-07-07T09:31:37.507Z INFO webdriverio: Initiate new session using the webdriver protocol
2020-07-07T09:31:37.522Z INFO webdriver: [POST] http://localhost:4448/session
2020-07-07T09:31:37.523Z INFO webdriver: DATA {
  capabilities: {
    alwaysMatch: { browserName: 'internet explorer' },
    firstMatch: [ {} ]
  },
  desiredCapabilities: { browserName: 'internet explorer' }
}