### Godot version

4.0.dev (ba9491f87)

### System information

Windows 11 Chrome 109.0.5414.75 (Official Build), iOS 16.2 Safari

### Issue description

When exporting a simple project for Web with any GDScript like following:
```gdscript
extends Control

```
will print the following error to the console:
```
USER ERROR: U_ILLEGAL_ARGUMENT_ERROR
   at: _is_confusable (modules\text_server_adv\text_server_adv.cpp:6151)
```

![image](https://user-images.githubusercontent.com/173001/214089154-d88f3f44-b670-41ec-9743-30627677968e.png)

For more complex project, following additional errors are showing:
```
USER ERROR: U_FILE_ACCESS_ERROR
   at: _spoof_check (modules\text_server_adv\text_server_adv.cpp:6174)
USER ERROR: U_ILLEGAL_ARGUMENT_ERROR
   at: _is_confusable (modules\text_server_adv\text_server_adv.cpp:6151)
```
When I've inserted `print_line(p_string)` at text_server_adv.cpp line 6172, following logs are collected:
![image](https://user-images.githubusercontent.com/173001/214091164-cb5af630-56d2-446e-b1c4-dc20066565d5.png)

It seems that the identifiers of *.gd files are printed to the console.


### Steps to reproduce

1. Open minimal reproduction project.
2. Exports to Web.
3. Open exported site with Chrome and open developer console.
4. Following error logs will be seen (reproduced): `USER ERROR: U_ILLEGAL_ARGUMENT_ERROR`

### Minimal reproduction project

[text_server_adv_error.zip](https://github.com/godotengine/godot/files/10481582/text_server_adv_error.zip)

var.tag = amaster->axis[i].tag;
				var.value = (double)amaster->axis[i].def / 65536.0;
				coords.write[i] = amaster->axis[i].def;
				if (p_font_data->variation_coordinates.has(var.tag)) {
					var.value = p_font_data->variation_coordinates[var.tag];
					coords.write[i] = CLAMP(var.value * 65536.0, amaster->axis[i].minimum, amaster->axis[i].maximum);
				}
				if (p_font_data->variation_coordinates.has(_tag_to_name(var.tag))) {
					var.value = p_font_data->variation_coordinates[_tag_to_name(var.tag)];
					coords.write[i] = CLAMP(var.value * 65536.0, amaster->axis[i].minimum, amaster->axis[i].maximum);
				}
				hb_vars.push_back(var);
			}
			FT_Set_Var_Design_Coordinates(fd->face, coords.size(), coords.ptrw());
			hb_font_set_variations(fd->hb_handle, hb_vars.is_empty() ? nullptr : &hb_vars[0], hb_vars.size());
			FT_Done_MM_Var(ft_library, amaster);
		}
#else
		memdelete(fd);
		ERR_FAIL_V_MSG(false, "FreeType: Can't load dynamic font, engine is compiled without FreeType support!");
#endif
	} else {
		
		fd->hb_handle = _bmp_font_create(fd, nullptr);
	}
	p_font_data->cache[p_size] = fd;
	return true;
}
_FORCE_INLINE_ void TextServerAdvanced::_font_clear_cache(FontAdvanced *p_font_data) {