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-rw-r--r--.changeset/small-ties-sort.md5
-rw-r--r--packages/astro/src/runtime/server/render/util.ts21
-rw-r--r--packages/astro/test/astro-attrs.test.js38
-rw-r--r--packages/astro/test/fixtures/astro-attrs/src/pages/index.astro35
-rw-r--r--packages/integrations/mdx/test/mdx-vite-env-vars.test.js4
5 files changed, 67 insertions, 36 deletions
diff --git a/.changeset/small-ties-sort.md b/.changeset/small-ties-sort.md
new file mode 100644
index 000000000..2269d714d
--- /dev/null
+++ b/.changeset/small-ties-sort.md
@@ -0,0 +1,5 @@
+---
+'astro': patch
+---
+
+Fixes attribute rendering for non-boolean attributes with boolean values
diff --git a/packages/astro/src/runtime/server/render/util.ts b/packages/astro/src/runtime/server/render/util.ts
index 469491de4..31a78a92e 100644
--- a/packages/astro/src/runtime/server/render/util.ts
+++ b/packages/astro/src/runtime/server/render/util.ts
@@ -8,9 +8,6 @@ export const voidElementNames =
/^(area|base|br|col|command|embed|hr|img|input|keygen|link|meta|param|source|track|wbr)$/i;
const htmlBooleanAttributes =
/^(?:allowfullscreen|async|autofocus|autoplay|controls|default|defer|disabled|disablepictureinpicture|disableremoteplayback|formnovalidate|hidden|loop|nomodule|novalidate|open|playsinline|readonly|required|reversed|scoped|seamless|itemscope)$/i;
-const htmlEnumAttributes = /^(?:contenteditable|draggable|spellcheck|value)$/i;
-// Note: SVG is case-sensitive!
-const svgEnumAttributes = /^(?:autoReverse|externalResourcesRequired|focusable|preserveAlpha)$/i;
const AMPERSAND_REGEX = /&/g;
const DOUBLE_QUOTE_REGEX = /"/g;
@@ -67,13 +64,6 @@ export function addAttribute(value: any, key: string, shouldEscape = true) {
return '';
}
- if (value === false) {
- if (htmlEnumAttributes.test(key) || svgEnumAttributes.test(key)) {
- return markHTMLString(` ${key}="false"`);
- }
- return '';
- }
-
// compiler directives cannot be applied dynamically, log a warning and ignore.
if (STATIC_DIRECTIVES.has(key)) {
// eslint-disable-next-line no-console
@@ -115,11 +105,16 @@ Make sure to use the static attribute syntax (\`${key}={value}\`) instead of the
}
// Boolean values only need the key
- if (value === true && (key.startsWith('data-') || htmlBooleanAttributes.test(key))) {
+ if (htmlBooleanAttributes.test(key)) {
+ return markHTMLString(value ? ` ${key}` : '');
+ }
+
+ // Other attributes with an empty string value can omit rendering the value
+ if (value === '') {
return markHTMLString(` ${key}`);
- } else {
- return markHTMLString(` ${key}="${toAttributeString(value, shouldEscape)}"`);
}
+
+ return markHTMLString(` ${key}="${toAttributeString(value, shouldEscape)}"`);
}
// Adds support for `<Component {...value} />
diff --git a/packages/astro/test/astro-attrs.test.js b/packages/astro/test/astro-attrs.test.js
index f4a014042..58d1ddbbb 100644
--- a/packages/astro/test/astro-attrs.test.js
+++ b/packages/astro/test/astro-attrs.test.js
@@ -16,21 +16,41 @@ describe('Attributes', async () => {
const $ = cheerio.load(html);
const attrs = {
- 'false-str': { attribute: 'attr', value: 'false' },
- 'true-str': { attribute: 'attr', value: 'true' },
- false: { attribute: 'attr', value: undefined },
- true: { attribute: 'attr', value: 'true' },
- empty: { attribute: 'attr', value: '' },
+ 'boolean-attr-true': { attribute: 'allowfullscreen', value: '' },
+ 'boolean-attr-false': { attribute: 'allowfullscreen', value: undefined },
+ 'boolean-attr-string-truthy': { attribute: 'allowfullscreen', value: '' },
+ 'boolean-attr-string-falsy': { attribute: 'allowfullscreen', value: undefined },
+ 'boolean-attr-number-truthy': { attribute: 'allowfullscreen', value: '' },
+ 'boolean-attr-number-falsy': { attribute: 'allowfullscreen', value: undefined },
+ 'data-attr-true': { attribute: 'data-foobar', value: 'true' },
+ 'data-attr-false': { attribute: 'data-foobar', value: 'false' },
+ 'data-attr-string-truthy': { attribute: 'data-foobar', value: 'foo' },
+ 'data-attr-string-falsy': { attribute: 'data-foobar', value: '' },
+ 'data-attr-number-truthy': { attribute: 'data-foobar', value: '1' },
+ 'data-attr-number-falsy': { attribute: 'data-foobar', value: '0' },
+ 'normal-attr-true': { attribute: 'foobar', value: 'true' },
+ 'normal-attr-false': { attribute: 'foobar', value: 'false' },
+ 'normal-attr-string-truthy': { attribute: 'foobar', value: 'foo' },
+ 'normal-attr-string-falsy': { attribute: 'foobar', value: '' },
+ 'normal-attr-number-truthy': { attribute: 'foobar', value: '1' },
+ 'normal-attr-number-falsy': { attribute: 'foobar', value: '0' },
null: { attribute: 'attr', value: undefined },
undefined: { attribute: 'attr', value: undefined },
- 'html-boolean': { attribute: 'async', value: 'async' },
- 'html-boolean-true': { attribute: 'async', value: 'async' },
- 'html-boolean-false': { attribute: 'async', value: undefined },
'html-enum': { attribute: 'draggable', value: 'true' },
'html-enum-true': { attribute: 'draggable', value: 'true' },
'html-enum-false': { attribute: 'draggable', value: 'false' },
};
+ assert.ok(!/allowfullscreen=/.test(html), 'boolean attributes should not have values');
+ assert.ok(
+ !/id="data-attr-string-falsy"\s+data-foobar=/.test(html),
+ "data attributes should not have values if it's an empty string"
+ );
+ assert.ok(
+ !/id="normal-attr-string-falsy"\s+data-foobar=/.test(html),
+ "normal attributes should not have values if it's an empty string"
+ );
+
// cheerio will unescape the values, so checking that the url rendered unescaped to begin with has to be done manually
assert.equal(
html.includes('https://example.com/api/og?title=hello&description=somedescription'),
@@ -46,7 +66,7 @@ describe('Attributes', async () => {
for (const id of Object.keys(attrs)) {
const { attribute, value } = attrs[id];
const attr = $(`#${id}`).attr(attribute);
- assert.equal(attr, value);
+ assert.equal(attr, value, `Expected ${attribute} to be ${value} for #${id}`);
}
});
diff --git a/packages/astro/test/fixtures/astro-attrs/src/pages/index.astro b/packages/astro/test/fixtures/astro-attrs/src/pages/index.astro
index 7ac96635f..8f2576650 100644
--- a/packages/astro/test/fixtures/astro-attrs/src/pages/index.astro
+++ b/packages/astro/test/fixtures/astro-attrs/src/pages/index.astro
@@ -1,19 +1,30 @@
-<span id="false-str" attr="false" />
-<span id="true-str" attr="true" />
-<span id="true" attr={true} />
-<span id="false" attr={false} />
-<span id="empty" attr="" />
+<span id="boolean-attr-true" allowfullscreen={true} />
+<span id="boolean-attr-false" allowfullscreen={false} />
+<span id="boolean-attr-string-truthy" allowfullscreen={'foo'} />
+<span id="boolean-attr-string-falsy" allowfullscreen={''} />
+<span id="boolean-attr-number-truthy" allowfullscreen={1} />
+<span id="boolean-attr-number-falsy" allowfullscreen={0} />
+
+<span id="data-attr-true" data-foobar={true} />
+<span id="data-attr-false" data-foobar={false} />
+<span id="data-attr-string-truthy" data-foobar={'foo'} />
+<span id="data-attr-string-falsy" data-foobar={''} />
+<span id="data-attr-number-truthy" data-foobar={1} />
+<span id="data-attr-number-falsy" data-foobar={0} />
+
+<span id="normal-attr-true" foobar={true} />
+<span id="normal-attr-false" foobar={false} />
+<span id="normal-attr-string-truthy" foobar={'foo'} />
+<span id="normal-attr-string-falsy" foobar={''} />
+<span id="normal-attr-number-truthy" foobar={1} />
+<span id="normal-attr-number-falsy" foobar={0} />
+
<span id="null" attr={null} />
<span id="undefined" attr={undefined} />
+
<span id="url" attr={"https://example.com/api/og?title=hello&description=somedescription"}/>
<span id="code" attr={"cmd: echo \"foo\" && echo \"bar\" > /tmp/hello.txt"} />
-<!--
- Per HTML spec, some attributes should be treated as booleans
- These should always render <span async /> or <span /> (without a string value)
--->
-<span id='html-boolean' async />
-<span id='html-boolean-true' async={true} />
-<span id='html-boolean-false' async={false} />
+
<!--
Other attributes should be treated as string enums
These should always render <span draggable="true" /> or <span draggable="false" />
diff --git a/packages/integrations/mdx/test/mdx-vite-env-vars.test.js b/packages/integrations/mdx/test/mdx-vite-env-vars.test.js
index 4e32d12cb..00fcfaab0 100644
--- a/packages/integrations/mdx/test/mdx-vite-env-vars.test.js
+++ b/packages/integrations/mdx/test/mdx-vite-env-vars.test.js
@@ -57,8 +57,8 @@ describe('MDX - Vite env vars', () => {
const dataAttrDump = document.querySelector('[data-env-dump]');
assert.notEqual(dataAttrDump, null);
- assert.notEqual(dataAttrDump.getAttribute('data-env-prod'), null);
- assert.equal(dataAttrDump.getAttribute('data-env-dev'), null);
+ assert.equal(dataAttrDump.getAttribute('data-env-prod'), 'true');
+ assert.equal(dataAttrDump.getAttribute('data-env-dev'), 'false');
assert.equal(dataAttrDump.getAttribute('data-env-base-url'), '/');
assert.equal(dataAttrDump.getAttribute('data-env-mode'), 'production');
});