Hello World app with QML & WebAssembly not working

ericg_97477

I found Developing Web apps using QML and Qt for WebAssembly which is a nice tutorial.

I successfully completed the steps:

$ ~/qt/5.15.2/wasm_32/bin/qmake ..
$ make

As near as I can tell, everything built successfully without error.

however, when I went to run, I got:

$ emrun — browser=firefox *.html
Starting browser: open http://localhost:6931/—?browser=firefox&default.html
The file /Users/ericg/depot_qt/default/build/http:/localhost:6931/—?browser=firefox&default.html does not exist.

$ ls -la
total 33776
drwxr-xr-x  16 ericg  staff       512 Oct 10 20:43 .
drwxr-xr-x  10 ericg  staff       320 Oct 10 20:36 ..
-rw-r--r--   1 ericg  staff       513 Oct 10 20:37 .qmake.stash
-rw-r--r--   1 ericg  staff     49028 Oct 10 20:41 Makefile
-rw-r--r--@  1 ericg  staff      3229 Oct 10 20:41 default.html
-rw-r--r--   1 ericg  staff    333625 Oct 10 20:43 default.js
-rw-r--r--   1 ericg  staff       449 Oct 10 20:37 default.js_plugin_import.cpp
-rw-r--r--   1 ericg  staff      1259 Oct 10 20:41 default.js_plugin_import.o
-rw-r--r--   1 ericg  staff       270 Oct 10 20:37 default.js_qml_plugin_import.cpp
-rw-r--r--   1 ericg  staff       848 Oct 10 20:41 default.js_qml_plugin_import.o
-rw-r--r--   1 ericg  staff  16544459 Oct 10 20:43 default.wasm
-rw-r--r--   1 ericg  staff      2455 Oct 10 20:41 main.o
-rw-r--r--   1 ericg  staff      3703 Oct 10 20:41 qrc_qml.cpp
-rw-r--r--   1 ericg  staff      1510 Oct 10 20:41 qrc_qml.o
-rw-r--r--   1 ericg  staff     21742 Oct 10 20:41 qtloader.js
-rw-r--r--   1 ericg  staff      3047 Oct 10 20:41 qtlogo.svg

and nothing comes up.

Any idea on what I did wrong?

ericg_97477

@ericg_97477

I ended up trying an alternate way to use emrun...

$ emrun --no_browser --port 8080 ./default.html
Web server root directory: /Users/ericg/depot_qt/default/build
Now listening at http://0.0.0.0:8080/

I then went to http://0.0.0.0:8080/ in the browser. I was shown the expected page:

Directory listing for /

with all of the files in my build folder.

When I clicked on default.html, I saw the QT icon and it a message that it was downloading the program. Eventually, I saw the the hello world message appear.

I assume I would eventually be able to take control over the loading screen.

So, that worked.

Why didn't emrun — browser=firefox *.html?