### 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 ((font_style & TextServer::FONT_ITALIC) && ftr.has(ital_tag)) {
							var[ital_tag] = 1;
							_font_set_style(sysf.rid, _font_get_style(sysf.rid) | TextServer::FONT_ITALIC);
						}
					}
					_font_set_antialiasing(sysf.rid, key.antialiasing);
					_font_set_generate_mipmaps(sysf.rid, key.mipmaps);
					_font_set_multichannel_signed_distance_field(sysf.rid, key.msdf);
					_font_set_msdf_pixel_range(sysf.rid, key.msdf_range);
					_font_set_msdf_size(sysf.rid, key.msdf_source_size);
					_font_set_fixed_size(sysf.rid, key.fixed_size);
					_font_set_force_autohinter(sysf.rid, key.force_autohinter);
					_font_set_hinting(sysf.rid, key.hinting);
					_font_set_subpixel_positioning(sysf.rid, key.subpixel_positioning);
					_font_set_variation_coordinates(sysf.rid, var);
					_font_set_oversampling(sysf.rid, key.oversampling);
					_font_set_embolden(sysf.rid, key.embolden);
					_font_set_transform(sysf.rid, key.transform);
					if (system_fonts.has(key)) {
						system_fonts[key].var.push_back(sysf);
					} else {
						SystemFontCache &sysf_cache = system_fonts[key];
						sysf_cache.max_var = _font_get_face_count(sysf.rid);
						sysf_cache.var.push_back(sysf);
					}
					f = sysf.rid;
				}
				
			}
		}