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thymeleaf / thymeleaf-spring

Thymeleaf integration module for Spring
http://www.thymeleaf.org
Apache License 2.0
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Thymeleaf only renders <form> element when there is an empty <form></form> tag before it. #282

Open ChrisHilborne opened 2 years ago

ChrisHilborne commented 2 years ago

Hello!

I'm not sure if this is the right place to post this but I've looked on Stackoverflow etc. and I couldn't find any reference to it.

I have been trying to make a simple GET <form>

This code did not render the form element as expected:

<!DOCTYPE html>

<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml" xmlns="http://www.w3.org/1999/html">
<head th:replace="fragments/head::head(title='Film Fanaticos')"></head>
<body>
<header th:replace="fragments/header :: header"></header>

<main>
    <br><br>
    <div class="container-md">
        <div class="alert alert-danger" role="alert">
            <p class="text-centre">
                <strong>Are you sure you want to delete yourself permanently?</strong>
                <br>
                <small>All of your films, scores and reviews will also be deleted.</small>
            </p>

            <form class="mx-2" th:method="GET" th:action="@{/user/delete}"}>
                <button class="btn btn-danger profile-button mx-2" type="submit">Delete Profile</button>
                <a href="#" class="alert-link mx-2" onclick="history.back()">Go Back</a>
            </form>
        </div>
    </div>
</main>
<footer th:replace="fragments/footer :: footer"></footer>
</body>
</html>

This was the rendered HTML in the browswer:

<main>
    <br><br>
    <div class="container-md">
        <div class="alert alert-danger" role="alert">
            <p class="text-centre">
                <strong>Are you sure you want to delete yourself permanently?</strong>
                <br>
                <small>All of your films, scores and reviews will also be deleted.</small>
            </p>

                <button class="btn btn-danger profile-button mx-2" type="submit">Delete Profile</button>
                <a href="#" class="alert-link mx-2" onclick="history.back()">Go Back</a>

        </div>
    </div>
</main>

However, when I add an empty <form></form> tag before the <form> I want, it does render:

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml" xmlns="http://www.w3.org/1999/html">
<head th:replace="fragments/head::head(title='Film Fanaticos')"></head>
<body>
<header th:replace="fragments/header :: header"></header>

<main>
    <br><br>
    <div class="container-md">
        <div class="alert alert-danger" role="alert">
            <p class="text-centre">
                <strong>Are you sure you want to delete yourself permanently?</strong>
                <br>
                <small>All of your films, scores and reviews will also be deleted.</small>
            </p>
            <form></form>
            <form class="mx-2" th:method="GET" th:action="@{/user/delete}"}>
                <button class="btn btn-danger profile-button mx-2" type="submit">Delete Profile</button>
                <a href="#" class="alert-link mx-2" onclick="history.back()">Go Back</a>
            </form>
        </div>
    </div>
</main>
<footer th:replace="fragments/footer :: footer"></footer>
</body>
</html>

Is rendered as: 

<main>
    <br><br>
    <div class="container-md">
        <div class="alert alert-danger" role="alert">
            <p class="text-centre">
                <strong>Are you sure you want to delete yourself permanently?</strong>
                <br>
                <small>All of your films, scores and reviews will also be deleted.</small>
            </p>

            <form class="mx-2" method="GET" action="/user/delete" }="">
                <button class="btn btn-danger profile-button mx-2" type="submit">Delete Profile</button>
                <a href="#" class="alert-link mx-2" onclick="history.back()">Go Back</a>
            </form>
        </div>
    </div>
</main>

I am using Spring Boot version 2.6.1 as well as the spring-boot-starter-thymeleaf, thymeleaf-extras-springsecurity5 and thymeleaf-extras-java8time dependencies.

Here is my pom-xml: 

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.6.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>io.chilborne</groupId>
    <artifactId>film-fanatic</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>film-fanatic</name>
    <description>Proyecto Final Para Spring Boot Curso de Tokio School</description>
    <properties>
        <java.version>11</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.22</version>
        </dependency>
        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>31.0.1-jre</version>
        </dependency>
        <dependency>
            <groupId>org.webjars</groupId>
            <artifactId>bootstrap</artifactId>
            <version>5.1.3</version>
        </dependency>

        <dependency>
            <groupId>org.webjars</groupId>
            <artifactId>jquery</artifactId>
            <version>3.5.1</version>
        </dependency>
        <dependency>
            <groupId>org.thymeleaf.extras</groupId>
            <artifactId>thymeleaf-extras-springsecurity5</artifactId>
        </dependency>
        <dependency>
            <groupId>org.thymeleaf.extras</groupId>
            <artifactId>thymeleaf-extras-java8time</artifactId>
        </dependency>
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt</artifactId>
            <version>0.9.1</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate.validator</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>7.0.1.Final</version>
        </dependency>
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
            <scope>runtime</scope>
        </dependency>
    </dependencies>

    <profiles>
        <profile>
            <id>test</id>
            <properties>
                <activatedProperties>test</activatedProperties>
            </properties>
        </profile>
    </profiles>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <profiles>
                        <profile>test</profile>
                    </profiles>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>11</source>
                    <target>11</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

Thanks!

EDIT: code formatting