opencv_js.config.py doesn't work

[uestchang]

I wanna use opencv in my electron project, and I have set the DBUILD_calib3d = ON, and even if I set the method of opencv_js.config.py calib3d includes 'findChessboardCorners', it doesn't work and opencv.js threw an error that Uncaught TypeError: cv.findChessboardCorners is not a function. The other method met the same situation as above.
Anyone can tell me the true progress to binary the method to opencv.js? I cannot see the related tutourial in docs.

System information (version)

• OpenCV => 4.5.1
• Operating System / Platform => Windows 64 Bit
• Compiler => Visual Studio 2015

Detailed description

I print the cv obj, and also can't see the method findChessboardCorners in it. I build the opencv.js successfully and there is no error while building. Once I try to use it in my project, The browser console mention that TypeError: cv.findChessboardCorners is not a function. The other method met the same situation as above.

• I have tired the latest version of opencv as well as the opencv 3.4.16
• I have tired the elder version of emsdk
• I have setup the opencv_js.config.py and build_js.py

[uestchang]

I find somone who met the same problem as me: https://forum.opencv.org/t/solvepnpransac-not-in-opencv-js-although-in-white-list/2065
It seem that it is a common bug that calib3d module is not correctly included during building progress, then the browser just say the method is not a function.

Need some help and focus, plz!

[alalek]

Mentioned solvePnPRansac is already recently fixed.
https://github.com/opencv/opencv/blame/4.5.4/platforms/js/opencv_js.config.py#L178

[minkyokyo]

Hello. I have the same error. -> Uncaught TypeError: cv.findChessboardCorners is not a function.

Did you find a solution?