### 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)

}
				}
				if (!f.is_valid()) {
					if (system_fonts.has(key)) {
						const SystemFontCache &sysf_cache = system_fonts[key];
						if (sysf_cache.max_var == sysf_cache.var.size()) {
							
							continue;
						}
					}
					if (!system_font_data.has(E)) {
						system_font_data[E] = FileAccess::get_file_as_bytes(E);
					}
					const PackedByteArray &font_data = system_font_data[E];
					SystemFontCacheRec sysf;
					sysf.rid = _create_font();
					_font_set_data_ptr(sysf.rid, font_data.ptr(), font_data.size());
					Dictionary var = dvar;
					
					int best_score = 0;
					int best_match = -1;
					for (int face_idx = 0; face_idx < _font_get_face_count(sysf.rid); face_idx++) {
						_font_set_face_index(sysf.rid, face_idx);
						if (unlikely(!_font_has_char(sysf.rid, text[0]))) {
							continue;
						}
						BitField<FontStyle> style = _font_get_style(sysf.rid);
						int weight = _font_get_weight(sysf.rid);
						int stretch = _font_get_stretch(sysf.rid);
						int score = (20 - Math::abs(weight - font_weight) / 50);