This looks like it could be a rasterizer issue.

Do you have GPU acceleration turned on, and if so do you still see the issue if you turn it off?

It works properly with hardware acceleration turned off.

Perhaps I should also mention the hardware: MacBook Pro (Retina, 13-inch, Early 2015). Base model, so GPU is Intel Iris Graphics 6100.

Could you also post your chrome://gpu/ page content?

Thanks

Graphics Feature Status
Canvas: Hardware accelerated
Flash: Hardware accelerated
Flash Stage3D: Hardware accelerated
Flash Stage3D Baseline profile: Hardware accelerated
Compositing: Hardware accelerated
Multiple Raster Threads: Enabled
Native GpuMemoryBuffers: Hardware accelerated
Out-of-process Rasterization: Disabled
Hardware Protected Video Decode: Unavailable
Rasterization: Hardware accelerated
Skia Deferred Display List: Disabled
Skia Renderer: Disabled
Surface Synchronization: Enabled
Video Decode: Hardware accelerated
Viz Service Display Compositor: Disabled
WebGL: Hardware accelerated
WebGL2: Hardware accelerated
Driver Bug Workarounds
add_and_true_to_loop_condition
adjust_src_dst_region_for_blitframebuffer
avoid_stencil_buffers
decode_encode_srgb_for_generatemipmap
disable_2d_canvas_auto_flush
disable_framebuffer_cmaa
disable_webgl_rgb_multisampling_usage
dont_use_loops_to_initialize_variables
emulate_abs_int_function
get_frag_data_info_bug
init_two_cube_map_levels_before_copyteximage
max_msaa_sample_count_4
msaa_is_slow
pack_parameters_workaround_with_pack_buffer
rebind_transform_feedback_before_resume
regenerate_struct_names
remove_invariant_and_centroid_for_essl3
reset_teximage2d_base_level
rewrite_texelfetchoffset_to_texelfetch
scalarize_vec_and_mat_constructor_args
set_zero_level_before_generating_mipmap
unfold_short_circuit_as_ternary_operation
unpack_alignment_workaround_with_unpack_buffer
unpack_image_height_workaround_with_unpack_buffer
use_intermediary_for_copy_texture_image
use_unused_standard_shared_blocks
Problems Detected
Protected video decoding with swap chain is for Windows and Intel only
Disabled Features: protected_video_decode
Unfold short circuit on Mac OS X: 307751
Applied Workarounds: unfold_short_circuit_as_ternary_operation
Always rewrite vec/mat constructors to be consistent: 398694
Applied Workarounds: scalarize_vec_and_mat_constructor_args
Mac drivers handle struct scopes incorrectly: 403957
Applied Workarounds: regenerate_struct_names
On Intel GPUs MSAA performance is not acceptable for GPU rasterization: 527565
Applied Workarounds: msaa_is_slow
glGenerateMipmap fails if the zero texture level is not set on some Mac drivers: 560499
Applied Workarounds: set_zero_level_before_generating_mipmap
Pack parameters work incorrectly with pack buffer bound: 563714
Applied Workarounds: pack_parameters_workaround_with_pack_buffer
Alignment works incorrectly with unpack buffer bound: 563714
Applied Workarounds: unpack_alignment_workaround_with_unpack_buffer
copyTexImage2D fails when reading from IOSurface on multiple GPU types.: 581777
Applied Workarounds: use_intermediary_for_copy_texture_image
Multisample renderbuffers with format GL_RGB8 have performance issues on Intel GPUs.: 607130
Applied Workarounds: disable_webgl_rgb_multisampling_usage
Use GL_INTEL_framebuffer_CMAA on ChromeOS: 535198
Applied Workarounds: disable_framebuffer_cmaa
glGetFragData{Location|Index} works incorrectly on Max: 638340
Applied Workarounds: get_frag_data_info_bug
glResumeTransformFeedback works incorrectly on Intel GPUs: 638514
Applied Workarounds: rebind_transform_feedback_before_resume
Result of abs(i) where i is an integer in vertex shader is wrong: 642227
Applied Workarounds: emulate_abs_int_function
Rewrite texelFetchOffset to texelFetch for Intel Mac: 642605
Applied Workarounds: rewrite_texelfetchoffset_to_texelfetch
Rewrite condition in for and while loops for Intel Mac: 644669
Applied Workarounds: add_and_true_to_loop_condition
Decode and encode before generateMipmap for srgb format textures on macosx: 634519
Applied Workarounds: decode_encode_srgb_for_generatemipmap
Init first two levels before CopyTexImage2D for cube map texture on Intel Mac 10.12: 648197
Applied Workarounds: init_two_cube_map_levels_before_copyteximage
Insert statements to reference all members in unused std140/shared blocks on Mac: 618464
Applied Workarounds: use_unused_standard_shared_blocks
Tex(Sub)Image3D performs incorrectly when uploading from unpack buffer with GL_UNPACK_IMAGE_HEIGHT greater than zero on Intel Macs: 654258
Applied Workarounds: unpack_image_height_workaround_with_unpack_buffer
adjust src/dst region if blitting pixels outside read framebuffer on Mac: 644740
Applied Workarounds: adjust_src_dst_region_for_blitframebuffer
Mac driver GL 4.1 requires invariant and centroid to match between shaders: 639760, 641129
Applied Workarounds: remove_invariant_and_centroid_for_essl3
Disable KHR_blend_equation_advanced until cc shaders are updated: 661715
Applied Workarounds: disable(GL_KHR_blend_equation_advanced), disable(GL_KHR_blend_equation_advanced_coherent)
Certain Apple devices leak stencil buffers: 713854
Applied Workarounds: avoid_stencil_buffers
Reset TexImage2D base level to 0 on Intel Mac 10.12.4: 705865
Applied Workarounds: reset_teximage2d_base_level
Don't expose disjoint_timer_query extensions to WebGL: 808744
Shader variable initialization in a loop caused perf regression on Mac Intel.: 809422
Applied Workarounds: dont_use_loops_to_initialize_variables
8x MSAA is slow for alpha:false WebGL contexts on Mac Intel: 812071
Applied Workarounds: max_msaa_sample_count_4
glFlush error on Mac: 841755
Applied Workarounds: disable_2d_canvas_auto_flush
Viz service display compositor is not enabled by default.
Disabled Features: viz_display_compositor
Skia renderer is not used by default.
Disabled Features: skia_renderer
Skia deferred display list is not used by default.
Disabled Features: skia_deferred_display_list
Version Information
Data exported	2018-07-14T11:19:49.576Z
Chrome version	Chrome/69.0.3486.0
Operating system	Mac OS X 10.13.6
Software rendering list URL	https://chromium.googlesource.com/chromium/src/+/472d1caeb99d99a8952e7170bbf435bd92902d73/gpu/config/software_rendering_list.json
Driver bug list URL	https://chromium.googlesource.com/chromium/src/+/472d1caeb99d99a8952e7170bbf435bd92902d73/gpu/config/gpu_driver_bug_list.json
ANGLE commit id	7e585118fe82
2D graphics backend	Skia/69 0dd98a59df631d3fe3b7ef3b275a8220507a8c1d-
Command Line	/Applications/Google Chrome.app/Contents/MacOS/Google Chrome --flag-switches-begin --disable-app-window-cycling --top-chrome-md=material --enable-features=NativeNotifications,OmniboxUIExperimentShowSuggestionFavicons,SimplifyHttpsIndicator --disable-features=OmniboxUIExperimentElideSuggestionUrlAfterHost,OmniboxUIExperimentSwapTitleAndUrl,stop-loading-in-background --flag-switches-end
Driver Information
Initialization time	94
In-process GPU	false
Passthrough Command Decoder	false
Direct Composition	false
Supports overlays	false
Sandboxed	true
GPU0	VENDOR = 0x8086 [Intel Inc.], DEVICE= 0x162b [Intel(R) Iris(TM) Graphics 6100] *ACTIVE*
Optimus	false
AMD switchable	false
Driver vendor	INTEL
Driver version	10.36.19
Driver date	
Pixel shader version	4.10
Vertex shader version	4.10
Max. MSAA samples	8
Machine model name	MacBookPro
Machine model version	12.1
GL_VENDOR	Intel Inc.
GL_RENDERER	Intel(R) Iris(TM) Graphics 6100
GL_VERSION	4.1 INTEL-10.36.19
GL_EXTENSIONS	GL_ARB_blend_func_extended GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_ES2_compatibility GL_ARB_explicit_attrib_location GL_ARB_gpu_shader_fp64 GL_ARB_gpu_shader5 GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_occlusion_query2 GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_separate_shader_objects GL_ARB_shader_bit_encoding GL_ARB_shader_subroutine GL_ARB_shading_language_include GL_ARB_tessellation_shader GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_cube_map_array GL_ARB_texture_gather GL_ARB_texture_query_lod GL_ARB_texture_rgb10_a2ui GL_ARB_texture_storage GL_ARB_texture_swizzle GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_vertex_attrib_64bit GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_texture_compression_s3tc GL_EXT_texture_filter_anisotropic GL_EXT_texture_sRGB_decode GL_APPLE_client_storage GL_APPLE_container_object_shareable GL_APPLE_flush_render GL_APPLE_object_purgeable GL_APPLE_rgb_422 GL_APPLE_row_bytes GL_APPLE_texture_range GL_ATI_texture_mirror_once GL_NV_texture_barrier
Disabled Extensions	GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent
Disabled WebGL Extensions	EXT_disjoint_timer_query EXT_disjoint_timer_query_webgl2
Window system binding vendor	
Window system binding version	
Window system binding extensions	
Direct rendering	Yes
Reset notification strategy	0x0000
GPU process crash count	0
Compositor Information
Tile Update Mode	Zero-copy
Partial Raster	Enabled
GpuMemoryBuffers Status
ATC	Software only
ATCIA	Software only
DXT1	Software only
DXT5	Software only
ETC1	Software only
R_8	GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
R_16	Software only
RG_88	Software only
BGR_565	Software only
RGBA_4444	Software only
RGBX_8888	Software only
RGBA_8888	GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
BGRX_8888	GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE
BGRX_1010102	GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
RGBX_1010102	Software only
BGRA_8888	GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
RGBA_F16	GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
YVU_420	Software only
YUV_420_BIPLANAR	GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
UYVY_422	GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
Display(s) Information
Info	Display[69732928] bounds=[0,0 1280x800], workarea=[0,22 1280x714], scale=2, external.
Color space information	{primaries_d50_referred: [[0.6587, 0.3332], [0.3206, 0.6135], [0.1508, 0.0527]], transfer:0.0777*x + 0.0000 if x < 0.0450 else (0.9478*x + 0.0521)**2.4000 + -0.0000, matrix:RGB, range:FULL}
Bits per color component	8
Bits per pixel	24
Video Acceleration Information
Decode h264 baseline	up to 4096x2160 pixels
Decode h264 extended	up to 4096x2160 pixels
Decode h264 main	up to 4096x2160 pixels
Decode h264 high	up to 4096x2160 pixels
Encode h264 baseline	up to 4096x2160 pixels and/or 30.000 fps
Encode h264 main	up to 4096x2160 pixels and/or 30.000 fps
Encode h264 high	up to 4096x2160 pixels and/or 30.000 fps

Able to reproduce the issue on reported version 69.0.3486.0 and latest chrome 69.0.3492.0 using Mac 10.12.6, hence providing Bisect Info
Note: Issue is not seen on Ubuntu 14.04 and Windows-10.
Bisect Info:
================
Good build: 69.0.3464.0
Bad build: 69.0.3466.0

You are probably looking for a change made after 568154 (known good), but no later than 568155 (first known bad).
https://chromium.googlesource.com/chromium/src/+log/19de023d406fad43277cb4007154d8ac700baf93..df18b96b443774d232e39ead6cbd81c848b8563c
Reviewed-on: https://chromium-review.googlesource.com/1099564

@Stephen White: Please confirm the issue and help in re-assigning if it is not related to your change.
Adding ReleaseBlock-Stable as it is seems a recent break, feel free to remove it if not applicable.

Thanks!

The following revision refers to this bug:
  https://skia.googlesource.com/skia/+/85dcf6bf808048098c43d85bf3e533d1adada4cc

commit 85dcf6bf808048098c43d85bf3e533d1adada4cc
Author: Stephen White <senorblanco@chromium.org>
Date: Wed Jul 18 13:19:01 2018

GrTessellator: fix overlap outer boundary winding.

When two outer boundary edges are collinear, they are part of an
overlap region. As of 77169c8fd6d, we (correctly) leave these edges
connected, but we must also adjust the winding to magnitude 1 to
keep the winding rules correct.

Note: this adds a new test case to the concavepaths GM, affecting all platforms.

Bug:  863389 

Change-Id: I7e3a06df537cd189101e7ad39a4815a78be8fbdd
Reviewed-on: https://skia-review.googlesource.com/141952
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>

[modify] https://crrev.com/85dcf6bf808048098c43d85bf3e533d1adada4cc/gm/concavepaths.cpp
[modify] https://crrev.com/85dcf6bf808048098c43d85bf3e533d1adada4cc/src/gpu/GrTessellator.cpp

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/bbbe560beac78fe91f291b9318e0779c3188f2fe

commit bbbe560beac78fe91f291b9318e0779c3188f2fe
Author: skia-chromium-autoroll <skia-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Date: Wed Jul 18 17:26:59 2018

Roll src/third_party/skia 5dbb0c3db56a..dc97fdc23571 (3 commits)

https://skia.googlesource.com/skia.git/+log/5dbb0c3db56a..dc97fdc23571


git log 5dbb0c3db56a..dc97fdc23571 --date=short --no-merges --format='%ad %ae %s'
2018-07-18 robertphillips@google.com Fix Valgrind skinning bug
2018-07-18 caryclark@skia.org fix bookmaker
2018-07-18 senorblanco@chromium.org GrTessellator: fix overlap outer boundary winding.


Created with:
  gclient setdep -r src/third_party/skia@dc97fdc23571

The AutoRoll server is located here: https://autoroll.skia.org

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel;luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel

BUG= chromium:863389 
TBR=bungeman@chromium.org

Change-Id: I26bc0a79b28a21c9f653586280e7cb42102ecfe8
Reviewed-on: https://chromium-review.googlesource.com/1142004
Reviewed-by: skia-chromium-autoroll <skia-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Commit-Queue: skia-chromium-autoroll <skia-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#576111}
[modify] https://crrev.com/bbbe560beac78fe91f291b9318e0779c3188f2fe/DEPS

[Auto-generated comment by a script] We noticed that this issue is targeted for M-69; it appears the fix may have landed after branch point, meaning a merge might be required. Please confirm if a merge is required here - if so add Merge-Request-69 label, otherwise remove Merge-TBD label. Thanks.

This landed before the M69 branch point, so we should be fine: https://chromiumdash.appspot.com/commit/85dcf6bf808048098c43d85bf3e533d1adada4cc

Able to reproduce the issue on chrome reported version 69.0.3486.0(Build without fix)
Verified the fix on Mac 10.12.6 on Chrome version #70.0.3500.0 as per the comment#0
Attaching screenshot for reference.
Observed "able to see images without any SVG rendering at 100% zoom"
Hence, the fix is working as expected.
Adding the verified label.

Thanks!

Deleted: 863389.png 303 KB

	863389.png 303 KB View Download

The bug reappeared. It seems to be in slightly different places, and only happens on 1x displays.

Version 71.0.3573.0 (Official Build) dev (64-bit)
Sample page (screenshot source): https://en.wikipedia.org/wiki/Euler%27s_formula#Applications_in_complex_number_theory

Deleted: Screenshot 2018-10-13 at 15.07.03.png 84.3 KB

	Screenshot 2018-10-13 at 15.07.03.png 84.3 KB View Download