Multiple carriage returns in Text property get removed or ignored.

[JoseSanchezMoralesIDOX]

Context

• MapFish print version: 3.30
• Java version: openjdk 11.0.21 2023-10-17
• OS: Docker version 20.10.7, build f0df350

Describe the bug

Multiple carriage returns (i.e., \n\n..) inside the Text property of the geoJson Layer ("type": "FeatureCollection") are not handled properly by Mapfish and they get removed from the printed PDF.

How to reproduce

Create a Feature Collection in the print request, and add empty lines (several carriage returns) in the Text property in one of the Features, i.e.:

                                    "type": "Feature",
                                    "geometry": {
                                        "type": "Polygon",
                                        "coordinates": [
                                            [],
                                            [],
                                            [],
                                            [],
                                            []
                                        ]
                                    },
                                    "properties": {
                                        "width": 6.7627606404320195,
                                        "linewidth": 1.6906231321781462,
                                        "annotype": "TextBox",
                                        "backgroundfill": "#ffffff",
                                        "backgroundstroke": "#000000",
                                        "strokecolour": "#000000",
                                        "text": "asdsasd \n\n\n\nasdaasdas  dasdssaadsddsaads",
                                        "textAlign": "cm",
                                        "centerCoords": [
                                            256872.2004,
                                            681873.0992,
                                            0
                                        ],
                                        "padding": 5,
                                        "offsetY": "1.6906901601080049",
                                        "scaling": "Scaled",
                                        "_style_0": "0e79d7ec-1faf-4c35-81dd-5d6441a848ac",
                                        "_style_1": "4a9e1238-a87f-4df5-b98a-456e00575546"
                                    },
                                    "id": "feature.1adaf7f2-a896-4b4b-a7ee-32ec1baafea1"
                                }

This was not happening in version 3.26.

Is this somehow a known bug?

Thanks in advance,

[sbrunner]

This can be done by GeoTools, what about replacing \n by <br />?

[JoseSanchezMoralesIDOX]

Thanks for the tip @sbrunner . However, replacing every single instance of \n by <br /> in the JSON print object before sending the request to Mapfish produces an empty bbox with no text back from MAPFISH. So, it doesn't like it.