Not expected response from WeasyPrint Service

[RohanIghe]

Hi,

We now have installed the latest version of pdf exporter v12.0.0 + weasyprint v68.0.0

And we observed that we get below error when trying to export some documents.

Error occurred during PDF generation:
java.lang.IllegalStateException: Not expected response from WeasyPrint Service. Status: 500, Message: [Unexpected error due converting to PDF: ValueError('expected 0 <= int <= 122, found: 123')]

Do you have any idea what this issue might be related to?
P.S. We checked the 2410 polarion version + the older pdf exporter and there this works fine.

So something definitely changed with new updates.

BR,
Rohan

[Jumas]

Hi @RohanIghe

To help us investigate further, could you please provide the logs (I guess there should be an error/stacktrace) from your weasyprint-service docker container?

[RohanIghe]

Hi @Jumas PFB stacktrace from polarion logs-

2026-01-23 10:54:30,458 [pool-70-thread-1] ERROR ch.sbb.polarion.extension.pdf_exporter.converter.PdfConverterJobsService - PDF conversion job '64c0cef4-34cd-40ae-89c0-d74f9a227530' is failed with error: Not expected response from WeasyPrint Service. Status: 500, Message: [Unexpected error due converting to PDF: ValueError('expected 0 <= int <= 122, found: 123')]
java.lang.IllegalStateException: Not expected response from WeasyPrint Service. Status: 500, Message: [Unexpected error due converting to PDF: ValueError('expected 0 <= int <= 122, found: 123')]
at ch.sbb.polarion.extension.pdf_exporter.weasyprint.service.WeasyPrintServiceConnector.sendConvertingRequest(WeasyPrintServiceConnector.java:216) ~[ch.sbb.polarion.extension.pdf-exporter-12.0.0.jar:?]
at ch.sbb.polarion.extension.pdf_exporter.weasyprint.service.WeasyPrintServiceConnector.convertToPdf(WeasyPrintServiceConnector.java:91) ~[ch.sbb.polarion.extension.pdf-exporter-12.0.0.jar:?]
at ch.sbb.polarion.extension.pdf_exporter.converter.CoverPageProcessor.lambda$generatePdfWithTitle$0(CoverPageProcessor.java:64) ~[ch.sbb.polarion.extension.pdf-exporter-12.0.0.jar:?]
at ch.sbb.polarion.extension.generic.util.ExecutionProfiler.timed(ExecutionProfiler.java:148) ~[ch.sbb.polarion.extension.generic.app-13.1.0.jar:?]
at ch.sbb.polarion.extension.pdf_exporter.converter.CoverPageProcessor.generatePdfWithTitle(CoverPageProcessor.java:63) ~[ch.sbb.polarion.extension.pdf-exporter-12.0.0.jar:?]
at ch.sbb.polarion.extension.pdf_exporter.converter.PdfConverter.generatePdf(PdfConverter.java:316) ~[ch.sbb.polarion.extension.pdf-exporter-12.0.0.jar:?]
at ch.sbb.polarion.extension.pdf_exporter.converter.PdfConverter.convertToPdf(PdfConverter.java:129) ~[ch.sbb.polarion.extension.pdf-exporter-12.0.0.jar:?]
at ch.sbb.polarion.extension.pdf_exporter.converter.PdfConverterJobsService.lambda$startJob$0(PdfConverterJobsService.java:58) ~[ch.sbb.polarion.extension.pdf-exporter-12.0.0.jar:?]
at java.security.AccessController.doPrivileged(AccessController.java:400) ~[?:?]
at javax.security.auth.Subject.doAs(Subject.java:453) ~[?:?]
at com.polarion.platform.internal.security.SubjectNDC.doAs(SubjectNDC.java:59) ~[platform.jar:?]
at com.polarion.platform.internal.security.SecurityService.doAsUser(SecurityService.java:429) ~[platform.jar:?]
at $ISecurityService_19be9db57ec.doAsUser($ISecurityService_19be9db57ec.java) ~[?:?]
at ch.sbb.polarion.extension.pdf_exporter.converter.PdfConverterJobsService.lambda$startJob$1(PdfConverterJobsService.java:58) ~[ch.sbb.polarion.extension.pdf-exporter-12.0.0.jar:?]
at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[?:?]
at java.lang.Thread.run(Thread.java:1583) ~[?:?]
2026-01-23 10:54:30,467 [pool-70-thread-1] ERROR ch.sbb.polarion.extension.pdf_exporter.converter.PdfConverterJobsService - PDF conversion job '64c0cef4-34cd-40ae-89c0-d74f9a227530' is failed with error: java.lang.IllegalStateException: Not expected response from WeasyPrint Service. Status: 500, Message: [Unexpected error due converting to PDF: ValueError('expected 0 <= int <= 122, found: 123')]
java.util.concurrent.CompletionException: java.lang.IllegalStateException: Not expected response from WeasyPrint Service. Status: 500, Message: [Unexpected error due converting to PDF: ValueError('expected 0 <= int <= 122, found: 123')]
at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?]
at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?]
at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[?:?]
at java.lang.Thread.run(Thread.java:1583) ~[?:?]
Caused by: java.lang.IllegalStateException: Not expected response from WeasyPrint Service. Status: 500, Message: [Unexpected error due converting to PDF: ValueError('expected 0 <= int <= 122, found: 123')]
at ch.sbb.polarion.extension.pdf_exporter.weasyprint.service.WeasyPrintServiceConnector.sendConvertingRequest(WeasyPrintServiceConnector.java:216) ~[ch.sbb.polarion.extension.pdf-exporter-12.0.0.jar:?]
at ch.sbb.polarion.extension.pdf_exporter.weasyprint.service.WeasyPrintServiceConnector.convertToPdf(WeasyPrintServiceConnector.java:91) ~[ch.sbb.polarion.extension.pdf-exporter-12.0.0.jar:?]
at ch.sbb.polarion.extension.pdf_exporter.converter.CoverPageProcessor.lambda$generatePdfWithTitle$0(CoverPageProcessor.java:64) ~[ch.sbb.polarion.extension.pdf-exporter-12.0.0.jar:?]
at ch.sbb.polarion.extension.generic.util.ExecutionProfiler.timed(ExecutionProfiler.java:148) ~[ch.sbb.polarion.extension.generic.app-13.1.0.jar:?]
at ch.sbb.polarion.extension.pdf_exporter.converter.CoverPageProcessor.generatePdfWithTitle(CoverPageProcessor.java:63) ~[ch.sbb.polarion.extension.pdf-exporter-12.0.0.jar:?]
at ch.sbb.polarion.extension.pdf_exporter.converter.PdfConverter.generatePdf(PdfConverter.java:316) ~[ch.sbb.polarion.extension.pdf-exporter-12.0.0.jar:?]
at ch.sbb.polarion.extension.pdf_exporter.converter.PdfConverter.convertToPdf(PdfConverter.java:129) ~[ch.sbb.polarion.extension.pdf-exporter-12.0.0.jar:?]
at ch.sbb.polarion.extension.pdf_exporter.converter.PdfConverterJobsService.lambda$startJob$0(PdfConverterJobsService.java:58) ~[ch.sbb.polarion.extension.pdf-exporter-12.0.0.jar:?]
at java.security.AccessController.doPrivileged(AccessController.java:400) ~[?:?]
at javax.security.auth.Subject.doAs(Subject.java:453) ~[?:?]
at com.polarion.platform.internal.security.SubjectNDC.doAs(SubjectNDC.java:59) ~[platform.jar:?]
at com.polarion.platform.internal.security.SecurityService.doAsUser(SecurityService.java:429) ~[platform.jar:?]
at $ISecurityService_19be9db57ec.doAsUser($ISecurityService_19be9db57ec.java) ~[?:?]
at ch.sbb.polarion.extension.pdf_exporter.converter.PdfConverterJobsService.lambda$startJob$1(PdfConverterJobsService.java:58) ~[ch.sbb.polarion.extension.pdf-exporter-12.0.0.jar:?]
at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?]
... 3 more

BR,
Rohan

[grigoriev]

@RohanIghe this is a stacktrace from pdf-exporter, but we need a log from weasyprint-service.

[RohanIghe]

PFB, error Log from weasyprint-

2026-01-23 09:54:30,416 - fontTools.ttLib.tables._h_e_a_d - WARNING - 'created' timestamp seems very low; regarding as unix timestamp
2026-01-23 09:54:30,416 - fontTools.ttLib.tables._h_e_a_d - WARNING - 'modified' timestamp seems very low; regarding as unix timestamp
2026-01-23 09:54:30,416 - fontTools.subset - INFO - head pruned
2026-01-23 09:54:30,417 - app.weasyprint_controller - ERROR - Unexpected error in HTML conversion: expected 0 <= int <= 122, found: 123
Traceback (most recent call last):
File "/opt/weasyprint/app/weasyprint_controller.py", line 381, in convert_html
output_pdf = await __process_html_to_pdf(html, render, output, chromium_manager)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/app/weasyprint_controller.py", line 428, in __process_html_to_pdf
return await __generate_pdf_from_parsed_html(parsed_html, html_parser, render, output, chromium_manager, attachments)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/app/weasyprint_controller.py", line 485, in __generate_pdf_from_parsed_html
output_pdf = weasyprint_html.write_pdf(
target=None, # Explicitly set to default (returns bytes); included for clarity
...<3 lines>...
attachments=attachments,
)
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/init.py", line 270, in write_pdf
self.render(font_config, counter_style, color_profiles, **options)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.write_pdf(target, zoom, finisher, **options))
~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/document.py", line 392, in write_pdf
pdf = generate_pdf(self, target, zoom, **options)
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/init.py", line 302, in generate_pdf
pdf_fonts = build_fonts_dictionary(
pdf, document.fonts, compress, subset, options)
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/fonts.py", line 316, in build_fonts_dictionary
font.clean(to_unicode, options['hinting'])
~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/fonts.py", line 132, in clean
self.subset(to_unicode, hinting)
~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/fonts.py", line 202, in subset
self._fonttools_subset(to_unicode, hinting)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/fonts.py", line 284, in _fonttools_subset
subsetter.subset(ttfont)
~~~~~~~~~~~~~~~~^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/fontTools/subset/init.py", line 3859, in subset
self._prune_post_subset(font)
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/fontTools/subset/init.py", line 3812, in _prune_post_subset
new_uniranges = font[tag].recalcUnicodeRanges(font, pruneOnly=True)
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/fontTools/ttLib/tables/O_S_2f_2.py", line 346, in recalcUnicodeRanges
self.setUnicodeRanges(bits)
~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/fontTools/ttLib/tables/O_S_2f_2.py", line 326, in setUnicodeRanges
raise ValueError("expected 0 <= int <= 122, found: %r" % bit)
ValueError: expected 0 <= int <= 122, found: 123
2026-01-23 09:54:30,419 - app.weasyprint_controller - ERROR - Unexpected error due converting to PDF: expected 0 <= int <= 122, found: 123
Traceback (most recent call last):
File "/opt/weasyprint/app/weasyprint_controller.py", line 381, in convert_html
output_pdf = await __process_html_to_pdf(html, render, output, chromium_manager)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/app/weasyprint_controller.py", line 428, in __process_html_to_pdf
return await __generate_pdf_from_parsed_html(parsed_html, html_parser, render, output, chromium_manager, attachments)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/app/weasyprint_controller.py", line 485, in __generate_pdf_from_parsed_html
output_pdf = weasyprint_html.write_pdf(
target=None, # Explicitly set to default (returns bytes); included for clarity
...<3 lines>...
attachments=attachments,
)
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/init.py", line 270, in write_pdf
self.render(font_config, counter_style, color_profiles, **options)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.write_pdf(target, zoom, finisher, **options))
~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/document.py", line 392, in write_pdf
pdf = generate_pdf(self, target, zoom, **options)
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/init.py", line 302, in generate_pdf
pdf_fonts = build_fonts_dictionary(
pdf, document.fonts, compress, subset, options)
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/fonts.py", line 316, in build_fonts_dictionary
font.clean(to_unicode, options['hinting'])
~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/fonts.py", line 132, in clean
self.subset(to_unicode, hinting)
~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/fonts.py", line 202, in subset
self._fonttools_subset(to_unicode, hinting)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/fonts.py", line 284, in _fonttools_subset
subsetter.subset(ttfont)
~~~~~~~~~~~~~~~~^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/fontTools/subset/init.py", line 3859, in subset
self._prune_post_subset(font)
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/fontTools/subset/init.py", line 3812, in _prune_post_subset
new_uniranges = font[tag].recalcUnicodeRanges(font, pruneOnly=True)
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/fontTools/ttLib/tables/O_S_2f_2.py", line 346, in recalcUnicodeRanges
self.setUnicodeRanges(bits)
~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/fontTools/ttLib/tables/O_S_2f_2.py", line 326, in setUnicodeRanges
raise ValueError("expected 0 <= int <= 122, found: %r" % bit)
ValueError: expected 0 <= int <= 122, found: 123
INFO: 172.17.0.1:60818 - "POST /convert/html?presentational_hints=true&pdf_variant=pdf%2Fa-1a&custom_metadata=false&scale_factor=1.0 HTTP/1.1" 500 Internal Server Error

[RohanIghe]

2026-01-23 12:05:14,004 - app.weasyprint_controller - ERROR - Unexpected error in HTML conversion: expected 0 <= int <= 122, found: 123
Traceback (most recent call last):
File "/opt/weasyprint/app/weasyprint_controller.py", line 381, in convert_html
output_pdf = await __process_html_to_pdf(html, render, output, chromium_manager)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/app/weasyprint_controller.py", line 428, in __process_html_to_pdf
return await __generate_pdf_from_parsed_html(parsed_html, html_parser, render, output, chromium_manager, attachments)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/app/weasyprint_controller.py", line 485, in __generate_pdf_from_parsed_html
output_pdf = weasyprint_html.write_pdf(
target=None, # Explicitly set to default (returns bytes); included for clarity
...<3 lines>...
attachments=attachments,
)
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/init.py", line 270, in write_pdf
self.render(font_config, counter_style, color_profiles, **options)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.write_pdf(target, zoom, finisher, **options))
~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/document.py", line 392, in write_pdf
pdf = generate_pdf(self, target, zoom, **options)
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/init.py", line 302, in generate_pdf
pdf_fonts = build_fonts_dictionary(
pdf, document.fonts, compress, subset, options)
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/fonts.py", line 316, in build_fonts_dictionary
font.clean(to_unicode, options['hinting'])
~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/fonts.py", line 132, in clean
self.subset(to_unicode, hinting)
~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/fonts.py", line 202, in subset
self._fonttools_subset(to_unicode, hinting)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/fonts.py", line 284, in _fonttools_subset
subsetter.subset(ttfont)
~~~~~~~~~~~~~~~~^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/fontTools/subset/init.py", line 3859, in subset
self._prune_post_subset(font)
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/fontTools/subset/init.py", line 3812, in _prune_post_subset
new_uniranges = font[tag].recalcUnicodeRanges(font, pruneOnly=True)
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/fontTools/ttLib/tables/O_S_2f_2.py", line 346, in recalcUnicodeRanges
self.setUnicodeRanges(bits)
~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/fontTools/ttLib/tables/O_S_2f_2.py", line 326, in setUnicodeRanges
raise ValueError("expected 0 <= int <= 122, found: %r" % bit)
ValueError: expected 0 <= int <= 122, found: 123
2026-01-23 12:05:14,006 - app.weasyprint_controller - ERROR - Unexpected error due converting to PDF: expected 0 <= int <= 122, found: 123
Traceback (most recent call last):
File "/opt/weasyprint/app/weasyprint_controller.py", line 381, in convert_html
output_pdf = await __process_html_to_pdf(html, render, output, chromium_manager)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/app/weasyprint_controller.py", line 428, in __process_html_to_pdf
return await __generate_pdf_from_parsed_html(parsed_html, html_parser, render, output, chromium_manager, attachments)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/app/weasyprint_controller.py", line 485, in __generate_pdf_from_parsed_html
output_pdf = weasyprint_html.write_pdf(
target=None, # Explicitly set to default (returns bytes); included for clarity
...<3 lines>...
attachments=attachments,
)
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/init.py", line 270, in write_pdf
self.render(font_config, counter_style, color_profiles, **options)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.write_pdf(target, zoom, finisher, **options))
~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/document.py", line 392, in write_pdf
pdf = generate_pdf(self, target, zoom, **options)
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/init.py", line 302, in generate_pdf
pdf_fonts = build_fonts_dictionary(
pdf, document.fonts, compress, subset, options)
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/fonts.py", line 316, in build_fonts_dictionary
font.clean(to_unicode, options['hinting'])
~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/fonts.py", line 132, in clean
self.subset(to_unicode, hinting)
~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/fonts.py", line 202, in subset
self._fonttools_subset(to_unicode, hinting)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/weasyprint/pdf/fonts.py", line 284, in _fonttools_subset
subsetter.subset(ttfont)
~~~~~~~~~~~~~~~~^^^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/fontTools/subset/init.py", line 3859, in subset
self._prune_post_subset(font)
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/fontTools/subset/init.py", line 3812, in _prune_post_subset
new_uniranges = font[tag].recalcUnicodeRanges(font, pruneOnly=True)
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/fontTools/ttLib/tables/O_S_2f_2.py", line 346, in recalcUnicodeRanges
self.setUnicodeRanges(bits)
~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "/opt/weasyprint/.venv/lib/python3.13/site-packages/fontTools/ttLib/tables/O_S_2f_2.py", line 326, in setUnicodeRanges
raise ValueError("expected 0 <= int <= 122, found: %r" % bit)
ValueError: expected 0 <= int <= 122, found: 123
INFO: 172.17.0.1:60872 - "POST /convert/html?presentational_hints=true&pdf_variant=pdf%2Fa-1a&custom_metadata=false&scale_factor=1.0 HTTP/1.1" 500 Internal Server Error