Fix fatal error when another the_content filter callback returns null instead of a string #1283
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Build for testing: webp-uploads.zip |
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westonruter
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adamsilverstein
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Jun 6, 2024
westonruter
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Jun 6, 2024
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| /** | ||
| * Tests that the fallback script is not added when a post with no updated images is rendered. | ||
| */ | ||
| public function test_it_should_not_add_fallback_script_if_content_has_no_updated_images(): void { | ||
| remove_all_actions( 'wp_footer' ); | ||
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| apply_filters( 'the_content', '<p>no image</p>' ); | ||
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| $this->assertFalse( has_action( 'wp_footer', 'webp_uploads_webp_fallback' ) ); | ||
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| $footer = get_echo( 'wp_footer' ); | ||
| $this->assertStringNotContainsString( 'webp;base64,UklGR', $footer ); | ||
| } | ||
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This should have been removed as part of #1269
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In a support topic, a user reported a fatal error:
Uncaught TypeError: webp_uploads_update_image_references(): Argument #1 ($content) must be of type string, null givenIt appears there is some other plugin which adds a
the_contentfilter which returnsnullinstead of astring. Sincewebp_uploads_update_image_references()is added as a filter, it should be updated to guard against this case by allowingmixedas the input, as we've done for other filters. This stems from work in #775.