wails dev 2.9.1 js->go cannot pass large parameters

[superDingda]

Description

wails dev Must operate in the browser JS calls the go method to pass in a large (1024kb+) parameter

JS -> go passes a large parameter (json string for example), which will appear. Your go function is not triggered. If you print the log, wail will print a similar error

{"level":"error","time":"2024-08-28T16:55:46.752+0800","file":"gui/wlog.go:50","msg":"","appName":"123","content":{"content":"unexpected end of JSON input"}} \This error is because json is not fully collected {"level":"error","time":"2024-08-28T16:55:46.754+0800","file":"gui/wlog.go:50","msg":"","appName":"123","content":{"content":"Unknown message from front end: \This is the lower half of the json

---

Further printing the stack, I found the problem is: internal\frontend\devserver\devserver.go:191

        for {
            if err := websocket.Message.Receive(c, &msg); err != nil {   
                break
            }
            // We do not support drag in browsers
            if msg == "drag" {
                continue
            }

            // Notify the other browsers of "EventEmit"
            if len(msg) > 2 && strings.HasPrefix(string(msg), "EE") {
                d.notifyExcludingSender([]byte(msg), c)
            }

            // Send the message to dispatch to the frontend
            result, err := d.dispatcher.ProcessMessage(string(msg), d)
            if err != nil {
                d.logger.Error(err.Error())            // 191
            }
            if result != "" {
                locker.Lock()
                if err = websocket.Message.Send(c, result); err != nil {
                    locker.Unlock()
                    break
                }
                locker.Unlock()
            }
        }
    }).ServeHTTP(c.Response(), c.Request())

Finally, I found the cause of the problem: When js calls the go export function, the parameter is too large and is split (I can understand this), but why is it not a continuous websocket frame, but split into two independent frames?

To Reproduce

wails dev Must operate in the browser JS calls the go method to pass in a large (1024kb+) parameter

Expected behaviour

wails dev Must operate in the browser JS calls the go method to pass in a large (1024kb+) parameter

Screenshots

No response

Attempted Fixes

No response

System Details

win11+v2.9.1

Additional context

No response