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v63.0 flexbox hang in endless loop #2304

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MWedl opened this issue Nov 13, 2024 · 0 comments
Open

v63.0 flexbox hang in endless loop #2304

MWedl opened this issue Nov 13, 2024 · 0 comments
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bug Existing features not working as expected

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@MWedl
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MWedl commented Nov 13, 2024

Hi,
after updating to weasyprint v63.0 we encountered a problem where weasyprint runs into an endless loop and hangs infinitely. The problem is probably caused by changes in the flexbox implementation.

Here is a minimal reproduction code:

<html>
<head></head>
<body>
  <div style="display: flex; flex-direction: column;">
    <div></div>
    <div>
      <div style="height: 1352px;"></div>
    </div>
    <div>
      text
    </div>
    <div></div>
  </div>
</body>
</html>
$ weasyprint --version
WeasyPrint version 63.0

$ weasyprint --debug index.html out.pdf
INFO: __init__.py:162 (__init__): Step 1 - Fetching and parsing HTML - data/index.html
INFO: __init__.py:69 (__init__): Step 3 - Applying CSS
INFO: document.py:242 (_build_layout_context): Step 4 - Creating formatting structure
INFO: page.py:907 (make_all_pages): Step 5 - Creating layout - Page 1
INFO: page.py:907 (make_all_pages): Step 5 - Creating layout - Page 2
INFO: page.py:907 (make_all_pages): Step 5 - Creating layout - Page 3
INFO: page.py:907 (make_all_pages): Step 5 - Creating layout - Page 4
INFO: page.py:907 (make_all_pages): Step 5 - Creating layout - Page 5
INFO: page.py:907 (make_all_pages): Step 5 - Creating layout - Page 6
INFO: page.py:907 (make_all_pages): Step 5 - Creating layout - Page 7
INFO: page.py:907 (make_all_pages): Step 5 - Creating layout - Page 8
INFO: page.py:907 (make_all_pages): Step 5 - Creating layout - Page 9
INFO: page.py:907 (make_all_pages): Step 5 - Creating layout - Page 10
INFO: page.py:907 (make_all_pages): Step 5 - Creating layout - Page 11
...
@grewn0uille grewn0uille added the bug Existing features not working as expected label Nov 13, 2024
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@grewn0uille @MWedl