Catch uWSGI TypeError for invalid headers

[kaij]

Catch TypeError thrown by uWSGI in addition to UnicodeError

Motivation and Context

The fix for invalid headers merged with #536 seems not to be working with Docker/uWSGI/Python3. Looking at https://github.com/unbit/uwsgi/blob/master/plugins/python/wsgi_headers.c#L140, uWSGI is throwing a TypeError, not a UnicodeError. However, UnicodeError is correct when not using uWSGI (e.g. run with cli.py).

Catching the TypeError solves the replay problem also when running pywb with Docker/uWSGI/Python3.

Types of changes

• Replay fix (fixes a replay specific issue)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added or updated tests to cover my changes.
• All new and existing tests passed.

[codecov]

Codecov Report

Merging #603 (6eab105) into master (7b51101) will decrease coverage by 0.51%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #603      +/-   ##
==========================================
- Coverage   87.69%   87.18%   -0.52%     
==========================================
  Files          64       64              
  Lines        8096     8099       +3     
  Branches     1445     1445              
==========================================
- Hits         7100     7061      -39     
- Misses        640      669      +29     
- Partials      356      369      +13     

Impacted Files	Coverage Δ
pywb/apps/wbrequestresponse.py	83.33% <0.00%> (ø)
pywb/utils/geventserver.py	68.42% <0.00%> (-7.90%)	⬇️
pywb/rewrite/rewriteinputreq.py	71.87% <0.00%> (-6.25%)	⬇️
pywb/apps/frontendapp.py	82.85% <0.00%> (-5.15%)	⬇️
pywb/apps/rewriterapp.py	83.22% <0.00%> (-4.68%)	⬇️
pywb/utils/loaders.py	91.24% <0.00%> (-1.46%)	⬇️
pywb/recorder/multifilewarcwriter.py	76.83% <0.00%> (-1.13%)	⬇️
pywb/rewrite/url_rewriter.py	87.00% <0.00%> (-1.00%)	⬇️
pywb/warcserver/index/aggregator.py	91.47% <0.00%> (+1.55%)	⬆️
pywb/apps/static_handler.py	88.09% <0.00%> (+2.38%)	⬆️
... and 1 more

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[ikreymer]

That makes sense, thanks for the fix!