[Webkit-unassigned] [Bug 242219] Too many filters causes image to no longer render

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=242219

--- Comment #1 from Said Abou-Hallawa <sabouhallawa at apple.com> ---
This is a known limitation in WebKit. For SVGFilter, the number of total effects can't exceed 100. This number includes the SourceGraphic (which is the target element we apply the filter to). See this statement:

    if (!success || expression.size() > maxTotalNumberFilterEffects)
        return std::nullopt;

in SVGFilter::buildExpression where maxTotalNumberFilterEffects is defined as

static constexpr unsigned maxTotalNumberFilterEffects = 100;

So I am not sure. We could remove this limitation. But is there any webpage which uses more than 100 effects in an SVGFilter?

Even the attached test case is just a stress test case. It creates 100 feGaussianBlur with the same parameters and add them to the filter.

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